Power Banks & External Batteries
I - Compact power banks
Really practical, thanks to their compact dimensions, small external batteries can be carried everywhere, and recharge your devices despite their smaller capacity. Discover the best pocket power banks.
Anker Nano A1653
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A pocket 5000 mAh power bank that plugs straight into the phone thanks to its built-in foldable USB-C connector, 22.5 W and barely 100 g.
- Capacity: 5000 mAh
- Power: 22.5 W max (USB-C)
- Connectivity: Built-in USB-C plug + USB-C port
- Weight: 100 g
- Built-in USB-C plug, 22.5 W and 100 g, plugs into the phone
The Anker Nano (reference A1653) is a mini power bank of 5000 mAh built for on-the-go top-ups. Its foldable USB-C connector flips out and plugs directly into the phone, with no cable, while an extra USB-C port lets you charge a second device or recharge the battery itself. It delivers up to 22.5 W, enough to quickly give a smartphone a good charge. At 100 g in an ultra-compact cube shape, it slips into any pocket, with four charge LEDs and a shell largely made from recycled plastics.
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4.1/5
We took to this Anker Nano A1653 for one simple reason: it fits in a pocket and plugs straight into the phone, with no cable to carry. The foldable USB-C connector is genuinely clever, you flip it out, clip it onto an iPhone or Android phone, and charging starts. At 100 g on the scale, you forget it in a jacket pocket, and the 5000 mAh are enough to give most phones a full charge, plenty to see out a day with peace of mind. The 22.5 W do the job: twenty minutes plugged in and you get a good chunk of battery back. The extra USB-C port is handy for charging a second device or for recharging the battery itself. The matte finish is understated and pleasant, and the four LEDs clearly show the remaining level. Two honest reservations: 5000 mAh is a single recharge, no more, and the little cube shape sticks out a bit when the plug is attached to the phone. But for an ultra-light, always-ready, cable-free top-up, the Nano A1653 is an excellent everyday companion.
Anker Zolo 10000 (30W)
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A 10,000 mAh pocket pack with its USB-C cable already attached: 30 W fast charging and a display that shows the exact percentage left, with no cord to carry.
- Capacity: 10,000 mAh (37 Wh)
- Power: 30 W max (USB-C Power Delivery)
- Ports: Built-in USB-C cable + USB-C port
- Format: Compact, fits in a pocket
- Built-in 30 W cable and a digital level display
The Anker Zolo 10,000 mAh plays the card of effective simplicity. Its USB-C cable is built into the casing, which settles the forgotten-cord question for good, and delivers up to 30 W: enough to take an iPhone from about 20 to 60% in half an hour. An extra USB-C port lets you feed a second device, earbuds or a watch for example, and a digital display shows the exact percentage left. With 10,000 mAh (37 Wh) in a format that fits a jeans pocket, it targets those who want a day's reserve without the bulk.
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4.2/5
This little Zolo spent a month in the inner pocket of a backpack, and it does exactly what is asked of it. The built-in USB-C cable is the main argument, and it delivers day to day: you take out the pack, plug in, done, with no rummaging for a cord. The loop formed by the cable also serves to hang it, a practical detail. The 30 W available is clearly felt against entry-level packs limited to 18 W: an iPhone 15 gets back over half its charge in about thirty minutes, plenty for a lunch break or a commute. Being able to add earbuds or a watch on the USB-C port is welcome at the end of the day when everything is flat. Its 10,000 mAh give about two phone charges, an honest reserve for a busy day or a light weekend, without the weight of a 20,000 model. One caveat: recharging the pack itself caps at 20 W, so allow a few hours for a full cycle. On the plus side, the digital display gives the exact percentage, sparing you the guesswork of plain LED dots. At this price, the equation stays very favourable.
Anker 533 PowerCore 30W
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A compact 10,000mAh power bank with a built-in colour screen and 30W USB-C PD charging, able to power up to 3 devices at once with no fixed cable.
- Capacity: 10,000mAh (37Wh)
- Power: 30W max (USB-C PD, PowerIQ 3.0)
- Ports: 1x USB-A + 2x USB-C
- Screen: Colour, percentage and time remaining
- Colour screen, 3 devices at once, replaceable cable
The Anker 533 PowerCore keeps things simple with three separate ports rather than a built-in cable: one USB-A and two USB-C ports let you charge up to three devices at the same time, with up to 30W of USB-C Power Delivery and PowerIQ 3.0. A colour screen shows the remaining percentage and charging time in real time, a level of precision rarely seen at this size. With 10,000mAh (37Wh) on board, it covers roughly two smartphone charges in a compact 91 x 48 x 25mm shell.
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4.1/5
This pack spent several weeks in a work bag during a stretch of business travel, and it settled straight into the inside pocket. Its three ports (one USB-A, two USB-C) let you charge a phone and earbuds at the same time without juggling a single connector, and the colour screen showing the exact percentage plus time remaining is far easier to read than the usual four-dot LED strip. On a recent iPhone, you get back about half a charge in a short thirty minutes thanks to the 30W output, enough to cover a meeting without a second thought. Its 10,000mAh give roughly two smartphone charges, a fair reserve for a busy day. The one gripe, also flagged by other owners: recharging the pack itself can be inconsistent, anywhere from two to five hours depending on the charger used. The included USB-C cable, not built in this time, at least has the advantage of being replaceable if it ever wears out. For a reliable, versatile pocket pack, it remains a safe pick.
Anker MagGo Apple Watch 10000
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It wirelessly charges the Apple Watch, and the iPhone, iPad or AirPods through its built-in USB-C cable, up to 35W combined in one compact case.
- Capacity: 10,000mAh (37Wh)
- Charging: USB-C cable 30W + Apple Watch charger 5W
- Compatibility: Apple Watch, iPhone, Samsung, iPad, AirPods
- Weight: 245g, compact design
- Built-in Apple Watch charger and 35W USB-C cable
The Anker MagGo Apple Watch 10000 is a power bank built around the Apple ecosystem. It packs a certified, magnetic wireless Apple Watch charger up to 5W, plus a USB-C cable built into the case that recharges an iPhone, iPad or AirPods up to 30W. Unlike induction power banks, here the cable charges the phone, while wireless is reserved for the watch. With 10,000mAh (37Wh), it delivers about two iPhone charges and up to eleven Apple Watch charges, in a case as compact as a computer mouse.
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4.1/5
We tested this Anker MagGo on a city break with an iPhone 16 and an Apple Watch Series 9, and the pairing works really well. The watch sits on the small magnetic puck, which tilts up to keep the face readable like a bedside alarm clock, handy for still wearing it overnight and tracking sleep without being tied to a wall socket. For the iPhone, no surprise: the built-in USB-C cable does the job, and it charges fast, with no digging through a bag for a lost cord. The digital display, showing percentage and current wattage, is a genuinely nice touch day to day. Two honest downsides: there is no wireless charging for the phone at all, everything goes through the cable, and like other users we noticed a small amount of drain when the watch charger sits idle with nothing on it for several days. Nothing dramatic in daily use, but worth watching if you store it for a while. For an Apple Watch owner, it remains one of the rare banks that genuinely handles both worlds well.
II - High capacity power banks
Need a lot of power? Here is our selection of the best high capacity external batteries. Heavier and less transportable than other power banks, they are destined for more restricted mobility, but are monsters in terms of capacity.
Anker 737 Power Bank
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24000mAh and 140W of power: the Anker 737 charges a laptop like a smartphone, with a display that shows everything in real time.
- Capacity: 24000mAh (86.4Wh)
- Power: 140W max (Power Delivery 3.1)
- Ports: 2 USB-C + 1 USB-A
- Display: Digital display (power, runtime, time)
- 140W to charge a laptop
The Anker 737 (PowerCore 24K) is a high-capacity 24000mAh power bank able to deliver up to 140W via Power Delivery 3.1. With its 3 ports (2 USB-C and 1 USB-A), it charges a laptop, a smartphone or a tablet at full speed, and can power several devices at once. Its digital display shows input and output power, remaining charge and estimated charging time. It recharges itself at 140W, a full charge in about 1 hour.
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4.0/5
The Anker 737 is the power bank you take when you refuse to compromise. Its 140W make it one of the few power banks able to charge a laptop at full speed, MacBook Pro included, and not just as a stopgap. Over a day on the move, it charged a laptop, two smartphones and earbuds without flinching, its 24000mAh offering a real reserve. The digital display is a genuine plus day to day: you see at a glance the power delivered and the remaining runtime, which avoids nasty surprises. It recharges itself very fast, in about an hour with a good 140W charger. The only downsides are its weight and size, hefty for a power bank (over 600 g), and its price, above average. But for real portable power, it is a benchmark.
Anker Zolo 20000 (30W)
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A tough built-in USB-C cable, 20,000 mAh and 30 W fast charging: the Anker Zolo is the cable-free travel power bank to pack, at a small price.
- Capacity: 20,000 mAh (72 Wh)
- Power: 30 W (fast charge)
- Cable: Built-in USB-C (10,000 bends)
- Weight: 353 g
- Built-in cable, 20,000 mAh, flight-ready, cheap
The Anker Zolo 20000 is a 20,000 mAh power bank designed to travel light, with no separate cable. Its built-in USB-C cable, braided and rated for 10,000 bends, also works as a lanyard: plug in and recharge any smartphone or tablet. The 30 W fast charging suits any recent smartphone, and an extra USB-C plus a USB-A port let you add more devices. With 72 Wh that are cabin-friendly and a tight price, it is one of the best capacity-to-price ratios around.
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3.7/5
Before anything else: this reference was the subject of an Anker safety recall in 2025 over an overheating risk (see the box above), with a free replacement offered to affected buyers. If you already own one, check its eligibility on the official page before continuing to use it. The Anker Zolo is the battery we recommend without hesitation to anyone heading off on a trip. Its core idea is simple but brilliant: the USB-C cable is built right in, braided and sturdy, and doubles as a lanyard. You never hunt for a cable again, you grab the battery, unfold the cord and charge, whether it is an iPhone, a Samsung or a tablet. The 30 W will not rival big laptop batteries, but for a smartphone it is genuine fast charging: half an iPhone recovered in about half an hour. Its 20,000 mAh easily last two to three days of phone use, or one long multi-device day. We also like the extra USB-C and USB-A ports, to plug in a second device or a pair of earbuds. Two honest downsides: it is a little heavy and thick for a pocket, better suited to a bag, and it will not charge a laptop at full speed, which is not its aim. But at this price, with this capacity and this near-indestructible built-in cable, it is hard to beat for everyday mobile use.
Anker A1695 (165W)
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With 25,000 mAh, 165 W, two built-in cables and a display, the Anker A1695 power bank even charges a laptop and up to 4 devices at once.
- Capacity: 25,000 mAh (90 Wh)
- Power: 165 W (USB-C 100 W max)
- Ports: 3 USB-C + USB-A + 2 built-in cables
- Weight: 595 g
- 165 W, built-in and retractable cables, display, 4 devices
The Anker A1695 is a 25,000 mAh, 165 W power bank able to charge a laptop as well as a smartphone. Its three USB-C ports (100 W max each) and USB-A port power up to four devices at once, while its two built-in USB-C cables (fixed and retractable) mean no separate cable to carry. A smart display shows charge, power and remaining time. Recharged to 30% in 20 minutes, with 90 Wh cleared for flights, it targets heavy users and mobile work.
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4.5/5
The Anker A1695 blew us away with its versatility. It is the first power bank you grab without a second thought: it charges the phone, the tablet and above all the laptop, all at once. The 100 W per USB-C port make a real difference, a MacBook gets half its charge back in half an hour, just like on the mains. But the detail we love is the two built-in cables: the retractable one for daily use, the fixed one as a backup, you never hunt for a cable again. The display is very readable and gives all the useful info, watts in, watts out, time remaining, you always know where you stand. Its 25,000 mAh easily last a big day of work away from an outlet, and it recharges itself quickly. Two honest reservations: at nearly 600 g, this is not a battery you slip into a pocket, it is made for a bag, and its price is higher than a regular power bank. But for intensive use, with this power and these built-in cables, it is hard to fault.
Anker Power Bank 20000 (87W)
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20,000 mAh and 87 W with the USB-C cable already in the pack: enough to charge a MacBook at 65 W plus two more devices, without ever hunting for a cord.
- Capacity: 20,000 mAh (72 Wh)
- Power: 87 W total (65 W max on one port)
- Ports: Built-in USB-C cable + USB-C + USB-A
- Recharge: 0 to 100% in 1.5 h (65 W charger)
- Built-in 65 W USB-C cable, 3 devices at once
The Anker A1383 solves the problem every traveller knows: the power bank is here, the cable stayed home. Its USB-C cable is built into the casing, rated for over 10,000 bends, and alone delivers up to 65 W, enough to charge a MacBook Air or an iPhone at full speed. With the extra USB-C port and the USB-A port, total output climbs to 87 W across three simultaneous devices. Its 20,000 mAh (72 Wh) give roughly four phone charges, stay cabin-legal, and refill in an hour and a half with a 65 W charger.
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4.1/5
We carried this Anker A1383 through a month of travel, and the built-in cable genuinely changes things. It sounds trivial, but no longer digging through a bag for a USB-C cord is the kind of detail you never give up once you have had it. The cable is short but well designed: it stows in a groove in the casing and doubles as a strap to grab the pack. On power, the 65 W available on that cable charged our MacBook Air through a meeting without the machine complaining, and an iPhone 16 went from 20 to 80% in a little under half an hour. The 20,000 mAh easily cover two days of heavy phone use, or a full day juggling phone, earbuds and tablet across the three outputs. The small display shows the remaining percentage, which avoids nasty surprises at the airport. Two honest caveats: at 431 g you feel it in a jacket pocket, and the 1.5-hour full recharge assumes you have a 65 W charger to hand, otherwise expect far longer. For travel or nomadic work, it is an excellent companion.
III - Fast power banks
New technologies, such as Power Delivery or Quick Charge 3.0, allow your recent and compatible devices to charge at incredible speeds. Here is our selection of external batteries capable of charging at very high speed.
Anker Nano 30W
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Compact with its built-in USB-C cable, a display and 30 W fast charging, the 10,000 mAh Anker Nano 30W recharges everything, anywhere.
- Capacity: 10,000 mAh (37 Wh)
- Power: 30 W (USB-C PD)
- Ports: Built-in USB-C cable + USB-C + USB-A
- Weight: 215 g
- Built-in USB-C cable, 30 W and a colour display
The Anker Nano 30W is a pocket-sized 10,000 mAh power bank with a USB-C cable built right in, so there is no separate cable to carry. It delivers up to 30 W over USB-C Power Delivery to fast-charge a smartphone, a tablet, earbuds or even a light laptop. A colour display shows the remaining charge, and two extra ports (USB-C and USB-A) complement the built-in cable. Compact (215 g), bi-directional and made from recycled plastic, it is ideal for daily use and travel.
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4.3/5
The Anker Nano 30W quickly won us over with how practical it is. The built-in USB-C cable is a genuine game-changer: no more digging for a cable at the bottom of the bag, it is always there, and it doubles as a loop to grab the battery. Day to day, the 30 W charge a smartphone quickly, you get half an iPhone's battery back in half an hour, and a tablet keeps up fine. The colour display is a real plus: you know exactly how much is left, no guessing with LEDs. With 10,000 mAh, you recharge a modern phone almost twice, plenty for a busy day or a light weekend. The pocket format and 215 g make it easy to take anywhere. Two honest reservations: the built-in cable, handy as it is, cannot be replaced if it wears out, and 30 W is a little tight to charge a large laptop at full speed. But for a smartphone and small devices, with this convenience and display, it is one of the most accomplished power banks in its class.
Anker Prime 20000 (200W)
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Two 100 W USB-C ports, 200 W in total and a smart display: the Anker Prime 20000 recharges two laptops at once, at full speed.
- Capacity: 20,000 mAh (72 Wh)
- Power: 200 W (2x USB-C 100 W)
- Ports: 2 USB-C + 1 USB-A
- Recharge: 100% in 1 hr 15 (100 W input)
- 200 W, two laptops at once, display, flight-ready
The Anker Prime 20000 (200W) is a premium power bank that can recharge two laptops at once. Its two USB-C ports each deliver up to 100 W, for 200 W in total, alongside a USB-A port. A smart LCD display shows the remaining level, the input and output power and the charging time. With 20,000 mAh (72 Wh), it recharges a smartphone about four times, refills itself in 1 hr 15 and stays cabin-friendly. The reference for demanding mobile work.
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4.0/5
The Anker Prime 200 W impressed us from the very first trip. It is the battery you grab without thinking when you head off to work away from an outlet: it charges the phone, the tablet and above all the laptop, often all at once. The 100 W per USB-C port genuinely changes things, a MacBook regains half its charge in about forty minutes, exactly like on mains power. Plugging in two laptops at once without watching the output collapse is honestly impressive. The display is the second big strength: clear and precise, it shows watts in and out, the remaining percentage and the estimated time, so you never charge blind again. Its 20,000 mAh easily last a heavy multi-device day, and it refills itself very quickly, a full charge in a little over an hour with a good charger. Compatibility with the Anker Prime charging base is a real plus on a desk. Two honest reservations: at around 545 g, this is not a pocket battery, it lives in the bag, and its price places it firmly in the premium tier. A built-in cable would also have been welcome. But for raw power and handling two laptops, it is hard to fault.
Anker Nano 45W InstaCord
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The USB-C cable pulls out, locks in place and retracts on its own: the Nano InstaCord 45W charges fast without ever leaving a cable behind.
- Capacity: 10,000mAh (37Wh)
- Power: 45W max (cable and USB-C port)
- Cable: Retractable InstaCord, 70cm extended
- Weight: 231g
- Retractable 70cm InstaCord cable, 45W charging
The Anker Nano InstaCord 45W is a 10,000mAh power bank whose USB-C cable, built into the casing, pulls out and retracts like a tape measure thanks to a patented roller mechanism (InstaCord, 70cm extended). It delivers up to 45W over USB-C, backed up by an extra USB-C port and a USB-A port for a second device. A display shows the remaining charge and the power of each output in real time. Compact at 231g, it suits anyone who wants fast charging without ever hunting for a cable.
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4.1/5
We carried the Nano InstaCord in a jacket pocket for three weeks, through train commutes and a short trip away, and the roller cable delivers on every promise: pull, charge, let go, and it winds itself back in, no more digging through a bag for a lost cord. The 45W output is genuinely noticeable next to the usual 20 or 30W power banks, a smartphone climbs back to half charge in about half an hour. The display is the kind of detail you only appreciate after a while: showing the exact percentage, the power draw on each port and even the temperature is reassuring, especially in summer. One small gripe, the weight sits in a fairly dense little case, you feel it more than a flatter bank of the same capacity, and the advertised 45W only holds on a single output, dropping fast as soon as a second device is plugged in. For everyday phone charging or travel, without ever worrying about the cable, it is easily one of the best Nano power banks Anker makes.
Anker Prime 20100 (220W)
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220W total output and 140W per USB-C port: the Anker Prime 20100 charges a MacBook Pro M4 to 50% in 28 minutes, and it stays flight-approved too.
- Capacity: 20,100mAh (72.36Wh)
- Power: 220W (140W per USB-C)
- Ports: 2 USB-C + 1 USB-A
- Recharge: 100W input, 50% in 31 min
- 140W per port, smart display, flight-approved
The Anker Prime 20100 (220W) is a premium power bank with two 140W USB-C ports and one USB-A port, delivering 220W of total output. It charges a MacBook Pro M4 to 50% in 28 minutes and recharges itself at up to 100W. With 20,100mAh (72.36Wh), it stays flight-approved and can charge an iPhone 16 Pro 3.6 times. A smart display and the Bluetooth-connected Anker app round out this power bank built for demanding mobile professionals.
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4.1/5
We carried the Anker Prime 20100 on business trips for several weeks, between trains and impromptu work sessions in coffee shops. The 140W USB-C port lives up to its claims: our MacBook Pro M4 went from 20% to 70% during a single lunch break, no mains charger needed. The display, which rotates automatically depending on how the battery is held, stays readable even in bright sunlight, and knowing exactly how many watts go to each port avoids nasty surprises. The Bluetooth-connected Anker app adds real convenience for tracking the charge remotely. The one real gripe: at 510 grams, it clearly belongs in a bag rather than a pocket, and the price sits above a generic power bank. For phone-only use, it is overkill. But for anyone regularly charging a laptop on client visits, it is a dependable choice, charge after charge.
IV - Solar power banks
A panel the size of your hand will not replace a wall socket: on these models, solar is a backup lifeline, not a primary charging source. We put real numbers on it in our solar power bank comparison. Here are the ones that actually deliver.
Blavor Solar Power Bank 20000
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A rugged 20,000 mAh outdoor power bank with 4 foldable solar panels, 18 W USB-C, 2 USB-A, a camping light and an IPX5 casing, built for the outdoors.
- Capacity: 20,000 mAh (Li-polymer, about 74 Wh)
- Power: USB-C 18 W (PD) + 2 USB-A (3 devices)
- Solar: 4 foldable panels (up to 1.2 A in the sun)
- Lighting: Multi-mode camping light + torch
- 4 foldable panels + USB-C 18 W, IPX5, rugged
The Blavor PN-W12 Pro is a 20,000 mAh power bank built for the outdoors, from a brand that has specialised in solar chargers for over ten years. Its distinctive feature: four foldable solar panels that unfold to capture far more sun than a single panel. It offers an 18 W USB-C Power Delivery output, two USB-A ports (three devices at once) and carries a multi-mode camping light plus a torch. Its rubberised IPX5 casing resists water, dust and shocks, and it ships with a compass and carabiner to clip onto a backpack. Ideal for hiking, camping or trekking, as long as you treat the solar as a top-up rather than a real charging source.
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3.9/5
We tested the Blavor PN-W12 Pro as an adventurer's power bank, and that is exactly where it makes sense. The rubberised casing inspires confidence: it takes knocks, resists water splashes (IPX5) and dust, and the supplied compass and carabiner let you clip it to a bag. Its real signature is the four foldable solar panels: unfolded, they capture far more sun than a single built-in panel (Blavor claims up to 1.2 A, about seven times a single panel). On the wired side, the 18 W USB-C Power Delivery output charges a smartphone at a good speed, and you can power three devices at once (USB-C, 2 USB-A). The multi-mode camping light and the torch are handy at camp. Its 20,000 mAh (about 74 Wh) provide roughly four full phone charges and stay under the 100 Wh airline cabin limit. Let us stay honest about the solar, as with all these packs: even with four panels, it takes many hours of full sun for a meaningful top-up, not enough to refill 20,000 mAh in a day (use the USB-C charge, about 6 hours, for a full refill). Seen for what it is, a rugged, generous outdoor pack whose four-panel solar is a serious backup but still a top-up, the Blavor PN-W12 Pro is a reassuring, complete and affordable outdoor companion.
elzle Solar Charger 26800
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A rugged 26,800 mAh outdoor power bank from elzle: 4 foldable solar panels, 15 W USB-C, a 4-mode LED torch and an IPX5 casing for adventure.
- Capacity: 26,800 mAh (about 99 Wh)
- Power: USB-C 15 W (in/out) + 2 USB-A
- Solar: 4 foldable monocrystalline panels
- Lighting: 4-mode LED torch, 150 lumens
- 4 foldable solar panels + rugged IPX5 casing
The elzle Solar Power Bank 26800 is a rugged power bank built for the outdoors, fitted with 4 foldable monocrystalline solar panels. It offers a 15 W USB-C port (input and output) plus two USB-A ports, to charge up to three devices at once. Its 4-mode LED torch (including SOS), its 26,800 mAh capacity (about 99 Wh) and its waterproof IPX5 casing make it a reliable companion for hiking, camping or expeditions, as long as you treat the solar panels as an emergency top-up rather than a primary charging source.
We took the elzle Solar Power Bank 26800 hiking and wild camping, and it lives up to its rugged reputation. The rubberised casing shrugs off knocks and splashes (IPX5), and the supplied carabiner clips straight onto a backpack. The four foldable solar panels are easy to unfold, but let us be honest: the brand says so itself, solar charging is an emergency backup, not a substitute for a mains socket, and it takes many hours of full sun for a meaningful top-up. Over USB-C, a full charge takes 8 to 9 hours, and the two USB-A ports let you power up to three devices at once. The four-mode torch, SOS included, proved genuinely useful at camp. One real downside: at 556 grams it adds noticeable weight to a pack, and some users report a real-world capacity a little short of the advertised 26,800 mAh, as is common for this type of product. For a rugged, generous power bank at this price, torch and carabiner included, it remains a solid choice for heading far from a power socket.
Xtorm XR104
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A rugged 10,000 mAh power bank with a built-in solar panel, LED torch and 3 USB outputs, designed for hiking and camping.
- Capacity: 10,000 mAh (Li-polymer)
- Power: 20 W max (USB-C PD, QC 3.0)
- Outputs: 1 USB-C + 2 USB-A (3 devices)
- Recharging: USB-C (3.5 h) or built-in solar panel
- 10,000 mAh with solar panel, LED torch, rugged, 3 outputs
The Xtorm XR104 is a 10,000 mAh outdoor power bank (Xtreme Series) that combines three assets for the wild: a built-in solar panel for backup power, a powerful LED torch and a rugged body that resists knocks and water splashes. It delivers up to 20 W on its USB-C port (Power Delivery) and offers three outputs (1 USB-C, 2 USB-A) to charge several devices at once. Supplied with a carabiner, it clips onto a backpack and follows you anywhere on a hike, a camp or a trek.
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3.7/5
We tested the Xtorm XR104 as an adventurer's battery, and that is exactly where it makes sense. The rubberised body inspires confidence: it takes knocks, resists water splashes (IPX4 rating), and the supplied carabiner lets you clip it onto a backpack to charge while walking. The built-in LED torch is a real bonus at a bivouac, handy for lighting a tent or getting by at night. On wired charging, the 20 W over USB-C top up a smartphone at a good pace, and being able to plug in three devices at once (1 USB-C, 2 USB-A) helps when there are several of you. The 10,000 mAh give around two full phone charges. Let us be honest about the solar: the small built-in panel is a backup to a backup, recovering a few Wh on a sunny day, enough to scrape a little range in a pinch, but not enough to fill the battery in the sun (count on USB-C to top it up fully). Seen for what it is, a solid outdoor battery with solar backup and a torch rather than a true solar charger, the XR104 is a reassuring, versatile companion in the wild.
Xtorm XR203
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The Xtorm XR203 promises a rugged IP65 power bank with 10,000mAh and a built-in solar panel, but its solar charging disappoints in testing and reviews.
- Capacity: 10,000 mAh (37Wh)
- Power: 20W max (USB-C PD)
- Water resistance: IP65 (shocks, dust, water)
- Outputs: 2 USB-C + 1 USB-A (3 devices)
- The toughest of Xtorm's solar power banks (IP65)
The Xtorm XR203 is a 10,000mAh outdoor power bank (Rugged Series), IP65 rated against shocks, dust and water. It delivers up to 20W over USB-C Power Delivery and offers three outputs (2 USB-C, 1 USB-A) to charge several devices at once. Its foldable Gen'24 solar panel promises a top-up outdoors, but our research and many customer reviews point to solar charging that is very slow, sometimes barely noticeable. A genuinely rugged companion, just don't buy it for the solar panel alone.
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3.7/5
The Xtorm XR203 won us over on paper: IP65 rating, foldable solar panel, kickstand, torch, three outputs including a 20W USB-C. In real use, wired charging keeps its promises: a full USB-C charge takes about 2.5 hours, and the three ports handle several devices at once without a hitch. The build feels reassuring too, with a rubberised shell that shrugs off knocks. The serious catch concerns the very feature that gives the product its name: solar charging. Digging through verified customer reviews on Amazon UK, France and Germany, the same complaint keeps coming back: solar charging is disappointing, sometimes close to useless. One German buyer measured several 6 hour sessions in full sun without gaining a single visible charge point. A French customer sent the unit back entirely, convinced it was faulty. This clearly isn't an isolated case. Our take: buy the XR203 for its IP65 toughness and versatile USB charging, not for the solar panel, which stays a token extra far more than a genuinely useful feature in the field.
V - Cheap power banks
Even with a limited budget, it is possible to find excellent external batteries. Some do not compromise on performance or quality despite their price. Here is our top of the most affordable power banks, accessible to all.
Varta Energy 5000
See price and availability (38)
A simple, affordable 5,000 mAh power bank from Varta, with two USB-A ports, a USB-C and enough to charge up to three devices.
- Capacity: 5,000 mAh (Li-polymer)
- Outputs: 2 USB-A + 1 USB-C (up to 15 W)
- Recharging: USB-C or micro-USB (cable included)
- Simultaneous charging: Up to 3 devices
- 5,000 mAh, 2 USB-A + USB-C, 3 devices, budget price
The Varta Power Bank Energy 5000 (reference 57975) is a compact 5,000 mAh power bank with unbeatable value for money. It offers two USB-A ports and a bi-directional USB-C port (input and output), plus a micro-USB input, and can power up to three devices at once, with charging power up to 15 W. Slim and light in its white shell, with four charge LEDs and a cable included, it is ideal as a reliable everyday backup battery without breaking the bank.
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4.0/5
We tested the Varta Energy 5000 as what it is: a simple, reliable, cheap backup battery. And on that ground, it ticks the right boxes. The format is slim and light, it slips easily into a pocket or a bag, and the white shell has a decent finish for the price. On connectivity, we like the versatility: two USB-A ports and a bi-directional USB-C let you recharge the battery as well as power devices, and the micro-USB input helps out with older cables. Being able to plug in up to three devices at once is a real bonus when travelling in a group. The 5,000 mAh give around one full phone charge, sometimes a little more on small phones: it is the typical top-up to see out a day. Two honest reservations: the capacity stays modest (do not count on it for a whole weekend without a socket), and the 15 W power suits topping up without working miracles on fast charging. But for a serious backup battery, from a well-known brand and at a very low price, the Varta Energy 5000 is a smart choice.
Intenso XS10000
See price and availability (34)
A compact 10,000 mAh power bank from Intenso, with a bi-directional USB-C port, a USB-A and an LED display, at a budget price.
- Capacity: 10,000 mAh (Li-polymer)
- Outputs: USB-C (in/out) + USB-A
- Power: Up to 15 W (5V / 3.1A total)
- Recharging: USB-C or micro-USB (cable included)
- 10,000 mAh, USB-C in/out + USB-A, 4 LEDs, compact and cheap
The Intenso XS10000 (reference 7313530) is a compact 10,000 mAh power bank with great value for money. In a pocket-sized white shell, it combines a bi-directional USB-C port (input and output), a USB-A port and a micro-USB input, with power up to 15 W. Four LEDs show the charge level, a USB-A to USB-C cable is included, and built-in protections (overcharge, over-discharge, short circuit) ensure worry-free use. Ideal as a reliable everyday backup battery, without breaking the bank.
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3.9/5
We tested the Intenso XS10000 as an everyday backup battery, and for the price, it does the job without a false note. The format is genuinely compact: a little brick that fits in the palm and slips into a jacket pocket or a bag without a thought. The white shell has a simple but decent finish, and the four LEDs tell you the remaining level at a glance. On connectivity, we like the bi-directional USB-C port, which both recharges the battery and powers a device, alongside a USB-A port and a micro-USB input for older cables. A USB-A to USB-C cable is included in the box, which saves an extra purchase. The 10,000 mAh give around two full phone charges, enough to see out a busy day or even a light weekend. The 15 W power suits topping up without aiming for ultra-fast charging, and the capacity is honest, right in the average for the format. A well-known German brand, built-in protections and a contained price: for a simple, reliable backup battery, the Intenso XS10000 is a smart choice.
Xiaomi Power Bank 10000 Lite
See price and availability (9)
10000 mAh, 22.5 W fast charging and three ports to charge several devices: the slim, light backup battery at the softest price, by Xiaomi.
- Capacity: 10000 mAh (37 Wh)
- Power: 22.5 W (fast charge)
- Ports: 1 USB-C + 2 USB-A (up to 3 devices)
- Weight: About 227 g
- 22.5 W and 3 ports in a slim body, at a tiny price
The Xiaomi Power Bank 10000mAh 22.5W Lite is a slim, light power bank built for affordable everyday backup. Its 10000 mAh (37 Wh) recharge a smartphone about twice, and its 22.5 W fast charge tops up quickly. With a two-way USB-C port and two USB-A ports, it powers up to three devices at once. At under £13, it is one of the best entry-level batteries around.
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3.9/5
The Xiaomi 10000 Lite is pretty much the perfect backup battery for a bag: slim, light (under 200 g) and sold at a ridiculously low price. I adopted it for days in town when I just want to be sure I finish the evening with some charge. It recharges my phone a bit under twice, which fits its 10000 mAh, and the 22.5 W fast charge really makes a difference versus old slow batteries. The three ports are handy when travelling with someone. The USB-C port also recharges it, in about 4.5 hours. Of course, at this price there is no precise display or wireless charging, and the power is meant for phones, not laptops. But to top up day to day without spending much, it is hard to do better.
VI - Wireless power banks
Induction charging technology (also known as IQ or Wireless charging) lets you charge compatible smartphones wirelessly by simply placing them on the charger. In this section, you will find mobile batteries capable of induction charging.
Anker MagGo 2 Pro
25W of MagSafe wireless charging backed by a real active cooling fan: Anker's MagGo 2 Pro takes on the biggest weakness of magnetic power banks, heat.
- Capacity: 10,000mAh
- Wireless: MagSafe / Qi2.2 25W with active fan
- Wired: 45W USB-C, input and output
- Extras: Screen (charge, temperature) + kickstand adjustable 0 to 80°
- The only actively cooled MagSafe power bank on the market
The Anker MagGo 2 Pro is a 10,000mAh magnetic power bank, Qi2.2 certified, that wirelessly charges a MagSafe-compatible iPhone at up to 25W by attaching to its back. Its headline feature is an active cooling fan with dual air channels that keeps the surface below 36 °C during wireless charging, addressing the heat throttling that slows down conventional MagSafe power banks. It also packs a 45W USB-C port (input and output), a screen showing charge level and temperature, and a built-in kickstand adjustable from 0 to 80°.
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4.1/5
The MagGo 2 Pro goes straight after the number one problem with MagSafe power banks: heat. Any magnetic wireless charge dissipates energy as heat, and the higher the wattage climbs, the hotter the shell gets, until the electronics throttle themselves back to stay safe. Anker's answer is a turbo fan with dual air channels, controlled by an algorithm that adjusts fan speed in real time, paired with a three-layer graphene heat spreader: the brand claims a surface temperature that stays under 36 °C throughout wireless charging, something we have not seen on this kind of accessory before. On paper, that should let it sustain the full 25W Qi2.2 rating without the thermal slowdown that usually hits rivals after a few minutes. The screen is a genuine plus: it shows charge percentage, battery health, temperature and the active mode, Cool or Silent, the latter switching the fan off at the cost of some charging speed for quieter use. The kickstand, adjustable from 0 to 80° and rated for 5,000 open cycles by Anker, holds up better than a single fixed click stop. Two things are worth confirming with more hands-on time: how loud the fan actually gets in Cool mode, and how the pack's own runtime holds up once its energy is split between charging the phone and running the fan. On paper, though, this is the most serious answer yet to the heat problem that has dogged MagSafe power banks since the category began.
Ugreen Nexode 10000mAh
See price and availability (60)
A magnetic MagSafe-compatible power bank: 10,000 mAh, wireless charging for iPhone, 20W USB-C and a built-in foldable stand, in an ultra-thin design.
- Capacity: 10,000 mAh (~37 Wh)
- Wireless charging: Magnetic MagSafe, 7.5W
- Wired charging: USB-C Power Delivery 20W
- Format: Ultra-thin 19 mm, 220 g, foldable stand
- MagSafe + 20W USB-C, foldable stand, ultra-thin
The Ugreen Nexode is a 10,000 mAh magnetic power bank designed for iPhone: it clips onto the back of the phone via its MagSafe-compatible magnets and charges it wirelessly, cable-free. Wired, its USB-C port delivers 20W Power Delivery for fast charging, and can power two devices at once. Ultra-thin (19 mm) and light (220 g), with a built-in foldable stand and a non-slip silicone surface, it is the ideal backup to slip into a pocket.
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4.0/5
We adopted the Ugreen Nexode as a backup battery for the iPhone, and its appeal is obvious the moment you place it on the back of the phone: the MagSafe magnets align it perfectly and hold it firmly, and you can keep using the iPhone while it charges, with no dangling cable. The format is genuinely thin and light, it disappears into a pocket. The little foldable stand is a nice surprise: you prop the phone in landscape to watch a video while it charges. Over USB-C, the 20W charge the iPhone quickly (or a second device at the same time), and also recharge the battery itself. Two honest caveats: wireless charging tops out at 7.5W on iPhone, fine for topping up but not the fastest (use USB-C if you are in a hurry), and it warms up a little during heavy magnetic charging. There is no screen, just LED level indicators. But at this price, to keep an iPhone topped up wirelessly day to day, the Nexode offers excellent value.
Anker MagGo Power Bank
See price and availability (44)
10000mAh that snap onto the back of an iPhone via MagSafe and charge it wirelessly at 15W: the Anker MagGo magnetic power bank, with a display and a built-in kickstand for upright use.
- Capacity: 10000mAh
- Wireless: MagSafe / Qi2 15W (magnetic)
- Wired: USB-C 27W output, 20W recharge
- Extra: Display + built-in kickstand
- MagSafe 15W wireless charging with kickstand
The Anker MagGo Power Bank is a 10000mAh magnetic power bank designed for MagSafe-compatible iPhones. Qi2 certified, it charges wirelessly at 15W by snapping magnetically to the back of the phone, and also offers a USB-C port up to 27W output (20W to recharge the bank) for fast wired charging. It has a display showing battery level and remaining charge time, plus a foldable kickstand to prop the phone upright while charging.
In-depth reviewRead our full review →
4.1/5
The MagGo is the power bank that finally made magnetic charging genuinely practical. You slap it onto the back of the iPhone, it holds perfectly thanks to the MagSafe magnet, and you keep using the phone while it charges wirelessly at 15W, with no dangling cable. The built-in kickstand is a handy little touch for propping the iPhone upright, even if the case, wider than the smaller models in the range, does not always sit the phone quite flat in landscape. The display showing the remaining percentage saves you from guessing. Its 10000mAh charge an iPhone about 1.8 times, enough for a good day. To go faster, the USB-C port allows full-speed wired charging, up to 27W. The downsides are those of any MagSafe bank: wireless charging warms up a little and is less efficient than wired, and the magnet is mainly optimised for iPhone. But for an Apple user, it is the perfect on-the-go accessory.
Anker Nano A1665
See price and availability (40)
A MagSafe power bank barely thicker than a phone case: 8.6mm, 122g, 15W Qi2 wireless charging to top up your iPhone all day long.
- Capacity: 5000mAh (18.5Wh)
- Wireless: MagSafe / Qi2 15W (magnetic)
- Wired: USB-C 20W (output and recharge)
- Format: 8.6mm thin, 122g
- Ultra-thin (8.6mm), MagSafe Qi2 15W, 122g
The Anker Nano A1665 is an ultra-thin 5000mAh magnetic power bank built for MagSafe-compatible iPhones. Qi2 certified, it snaps onto the back of your phone and charges wirelessly at up to 15W, twice as fast as a standard Qi power bank. A USB-C port rounds things out at up to 20W, both for output and for recharging, while a graphene cooling system keeps the temperature under 40 °C. At 8.6mm thin and 122g, it slips into a pocket without you even noticing.
In-depth reviewRead our full review →
4.0/5
We tested the Anker Nano A1665 as our everyday backup battery, and its thinness catches us off guard every time we pull it out of a pocket. At just 8.6mm, it nearly disappears once snapped onto the back of an iPhone via the MagSafe magnet, and the Qi2 alignment is effortless. Wireless charging at 15W is noticeably faster than older induction power banks capped at 5 or 7.5W, we get a genuine quarter of battery back in under three quarters of an hour. The USB-C port handles wired duty just as well, up to 20W, handy for recharging the bank itself or topping up another device with a cable. Two honest gripes, common to every MagSafe battery: it gets noticeably warm on wireless charging, and with 5000mAh you're looking at roughly one full iPhone charge, not more. The metal frame gives it a reassuringly solid feel in hand. For a light, fast top-up during the day without weighing your pocket down, the Nano A1665 is one of the best thin MagSafe power banks around right now.
VII - Multi-function devices
Below you will find devices whose primary role isn't to act as an external battery for charging your devices, but which, in addition to their main function, are also able to do so. Here is our selection of these highly versatile devices.
JBL Charge 5
See price and availability (71)
A sure bet among JBL's portable speakers: 40W of powerful sound, IP67 waterproofing, 20 hours of battery life and a power bank function to charge your phone.
- Sound power: 40 W (driver + tweeter, 2 passive radiators)
- Battery life: 20 h (7500 mAh battery)
- Functions: Speaker, USB-A power bank (10 W), IP67 waterproof
- Connectivity: Bluetooth 5.1, PartyBoost
- 40W sound, IP67, 20h and USB phone charging
The JBL Charge 5 is a portable Bluetooth speaker that has become a benchmark: rich 40W sound (racetrack driver, a tweeter and two passive bass radiators), 20 hours of battery life and IP67 waterproofing that shrugs off water and dust. Its 7500 mAh battery doubles as a power bank, via a USB-A port, to charge a phone during the day. With Bluetooth 5.1 and PartyBoost, it pairs with other compatible JBL speakers for bigger sound.
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3.7/5
We took the Charge 5 everywhere, and that is exactly what it is built for. On a terrace or by the pool, the sound really carries: the 40W fill a garden without distorting, with bass that is genuinely present for a speaker this size. The IP67 rating reassured us more than once, between a surprise shower while camping and splashes at the water's edge, it takes it all in stride. Battery life lives up to the claim: on a full day out we never had to recharge it, and the 20 hours are realistic at a reasonable volume. The little extra that places it among multi-function devices is the USB-A port that rescues a dead smartphone, very handy on a hike or at a festival. Two honest downsides: there is no aux input and no microphone for calls, and at full volume the battery drains a bit faster. But for generous sound, a rugged build and real portable versatility, the Charge 5 remains a safe bet.
JBL Xtreme 3
See price and availability (39)
The most powerful speaker in JBL's portable line-up: 100W of immersive sound, IP67 waterproofing, 15h of battery life, a shoulder strap and a power bank function.
- Sound power: 100 W (4 speakers)
- Battery life: 15 h (5000 mAh, 36.3 Wh)
- Functions: Speaker, USB power bank (12.5 W), IP67 waterproof
- Connectivity: Bluetooth 5.1, PartyBoost
- Immersive 100W sound, IP67, strap and power bank
The JBL Xtreme 3 is the heavyweight of the brand's portable Bluetooth speakers: 100W of power driven by four speakers and two passive radiators, for immersive sound and deep bass. IP67 waterproof, it offers 15 hours of battery life and a large battery that also works as a power bank via a USB port. Supplied with a rugged shoulder strap featuring a bottle opener, it is built for parties, the beach and big outdoor gatherings.
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3.7/5
When you bring out the Xtreme 3, you do not go unnoticed, and that is the whole point. With its 100W and four speakers, it puts out full sound and bass that moves air: enough to fill an entire garden or a table of twenty people without ever straining. We used it a lot outdoors, and its IP67 rating let us set it down by the pool without worry. The supplied shoulder strap, with its built-in bottle opener, is a real plus for carrying it around, even if at nearly 2 kg you feel it on your shoulder. The USB rescue port saved more than one phone at the end of the evening, which clearly places it among multi-function devices. The 15-hour battery life is decent given the power, but at full volume it drops faster. Two honest downsides: it is bulky and heavy, and its price sits at the top of the range. But for anyone after big, long-lasting portable sound, the Xtreme 3 delivers on its promises.
JBL Charge 6
See price and availability (32)
JBL's new portable benchmark: AI-boosted sound, upgraded IP68 waterproofing, 28 hours of battery life, a removable strap and a USB-C power bank function.
- Sound power: 45 W RMS (30 W woofer + 15 W tweeter)
- Battery life: 28 h (24 h + 4 h Playtime Boost)
- Functions: Speaker, USB-C power bank, IP68 waterproof
- Connectivity: Bluetooth 5.4, Auracast
- IP68, 28h, Auracast, removable strap and USB-C power bank
The JBL Charge 6 succeeds the famous Charge 5 and raises the bar across the board: upgraded IP68 waterproofing, 28 hours of battery life (24 h + 4 h thanks to Playtime Boost), Bluetooth 5.4 with Auracast and a new removable carry strap. Its USB-C port doubles as a power bank output to charge a smartphone, and also accepts high-quality wired audio. A true multi-function device, built for the outdoors.
In-depth reviewRead our full review →
3.9/5
After years of faithful service from the Charge 5, we were watching the Charge 6 closely, and JBL delivered. The sound has grown fuller: AI Sound Boost, a real-time signal processing algorithm, draws more from the drivers and you feel more generous bass, a more open presentation at higher volumes. On a day at the beach, the IP68 rating (now protected against prolonged submersion) reassured us, and the removable strap, the real novelty, is a game changer for hanging it on a bag or a branch. The 28-hour battery life is comfortable: you get through a camping weekend with little recharging. The power bank function moves to USB-C, more universal, and the same port also serves as a quality wired audio input. On connectivity, Auracast replaces PartyBoost and broadcasts to a near-unlimited number of compatible speakers. Two reservations: the price creeps up compared with the Charge 5, and there is still no microphone for calls. But as a multi-function portable speaker, the Charge 6 is a fine evolution.
Olight Olantern Classic 2 Pro
See price and availability (4)
A retro-style camping lantern, dimmable from 10 to 300 lm, controlled by app, with a genuine 18W power bank function to recharge your devices.
- Brightness: 10-300 lm (warm white + orange)
- Runtime: up to 180 h (7.5 days)
- Power bank: 18 W (USB-C + USB-A)
- Control: App + rotary knob
- Retro dimmable lantern and 18W power bank, app-controlled
The Olight Olantern Classic 2 Pro is a retro-style LED camping lantern built around versatility. Its light dims steplessly from 10 to 300 lumens, from warm white to ambient orange, via a rotary knob or the smartphone app (battery level, timer, sleep mode). Its built-in 11,200 mAh (40.32 Wh) battery provides up to 180 hours of runtime and also works as an 18W power bank, with USB-C and USB-A outputs to charge a phone. A true multi-function device for camping and power cuts.
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3.8/5
We have a real soft spot for this Olantern Classic 2 Pro, as much for its looks as for what it can do. The retro copper style looks great on a camping table or a shelf at home, and the light is superb: the knob lets you dial in the mood precisely, from warm white for reading to soft orange for an evening. App control is a clever touch, you check the battery level and set a timer without getting up. What places it among multi-function devices is its power bank function: with USB-C and USB-A outputs up to 18W, it recharged our phones during a weekend out in nature, a real plus when you are far from an outlet. Runtime is impressive in eco mode, holding several nights without a recharge. Two honest reservations: it is fairly heavy for a lantern, and its price sits above basic camping lights. But for the quality of light, the style and the dual lighting-battery role, it is well worth a look.
VIII - Related questions
How do you choose an external battery? First, take stock of your needs. Does the power bank need to be compact enough to fit in your pocket, or does capacity matter more than size? How many times do you want to recharge your smartphone (check its capacity in mAh)? Do you need fast charging? Finally, factor in your budget, and with our help you'll know which external battery to choose.
All external batteries recharge via a simple USB port. Whether it uses a micro-USB cable or a USB-C cable (rarer), any power bank can be recharged on the same mains charger as your smartphone, or on any device with a USB port, such as your computer. This simplicity explains the great success of this type of battery.
External batteries are most often made up of one or more cells (often 18650-type cells) wired in parallel, with a sophisticated electronic circuit (managing charge and discharge, with integrated protection circuits), all enclosed in a protective shell. Their characteristics generally depend on the number of cells and the electronic circuit.
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