USB, wall & battery chargers
I - Wall & USB chargers
The wall charger is the everyday essential: it recharges phones, tablets and laptops from a mains socket. Thanks to GaN technology and fast charging (Power Delivery, Quick Charge), recent models are smaller, more powerful and can charge several devices at once. Here is our selection of the best wall and USB-C chargers.
Anker USB Mains Charger 24W
See price and availability (19)
A compact, reliable wall charger able to charge two devices at once thanks to its two USB ports, for a total output of 24W, safely.
- Power: 24W (max, 2 ports)
- Voltage: 100-240V (universal)
- Outputs: 2 USB-A ports, 5V/2.4A (4A max total)
- PowerIQ + VoltageBoost, two devices at once, compact
This Anker mains charger has two USB-A ports, each delivering up to 5V/2.4A, for a total output of 24W. Thanks to Anker's own PowerIQ and VoltageBoost technologies, it recognises each connected device and sends it the fastest, safest possible charge. Its universal input voltage (100-240V) makes it ideal for travelling abroad. A reliable dual charger for charging a smartphone and a second device at the same time.
Anker Nano II 65W
See price and availability (54)
The GaN charger that replaces all the others: 65W over USB-C, 3 ports for MacBook, iPhone and tablet, in a 53% more compact format.
- Power: 65W max (GaN II)
- Voltage: 5V / 9V / 15V / 20V
- Outputs: 2 USB-C + 1 USB-A, 3 devices
- Compatibility: MacBook, iPhone, iPad, Galaxy
- 65W GaN, 3 ports, 53% more compact
The Anker Nano II 65W is an ultra-compact USB-C wall charger with GaN II technology: it delivers up to 65W, enough to charge a MacBook Air or a 13-inch MacBook Pro at full speed, as well as an iPhone or a tablet. Its 3 ports (2 USB-C and 1 USB-A) power three devices at once, with power shared automatically. Claimed 53% smaller than a conventional charger, barely bigger than an AirPods case, it becomes the ideal single charger for the bag as well as the desk.
We have been using the Anker Nano II 65W every day for weeks, and it is the kind of little accessory you never leave behind. The first surprise is its size: barely bigger than an earbuds case, yet it replaces the MacBook's bulky brick. On the main USB-C port, the laptop charges at full speed, and you can plug in a phone and a tablet at the same time without anything stalling, the power sharing itself. Anker's finish is there, the case is solid and does not get warmer than it should. On the move, it fits in the smallest pocket and saves carrying three different chargers. Two small caveats: when charging three demanding devices at once, each necessarily gets less than the port's 65W on its own, which is logical, and it does not include interchangeable plugs for abroad, unlike some rivals. But for a single, tiny, reliable GaN charger from one of the industry leaders, it is a reference we recommend without hesitation.
Anker Nano 3 (511)
See price and availability (51)
Tiny but tough: the Anker Nano 3 delivers 30W over USB-C in a body 70% more compact than a standard charger, with a foldable plug.
- Power: 30W
- Port: 1 x USB-C
- Technology: GaN, PowerIQ 3.0 PPS
- Format: Foldable, 70% more compact
- Fast 30W in a pocket body with a foldable plug
The Anker Nano 3 (511) charger is a small 30W USB-C wall brick that relies on GaN technology to drastically cut its size: up to 70% more compact than an equivalent charger, with a foldable plug that protects your bag. Its PowerIQ 3.0 technology with PPS recharges an iPhone up to 3 times faster than a stock 5V charger, and also suits Samsung Galaxy, Pixel, iPad and earbuds. Ideal for travel or as a spare charger, it combines power, compactness and safety in a pocket format. Cable not included.
Ugreen Nexode 65W
See price and availability (45)
One charger for everything: 65W over USB-C GaN, 3 ports for MacBook, iPhone and tablet, and US/UK/EU plugs for travel.
- Power: 65W max (GaN II)
- Voltage: 5V / 9V / 12V / 15V / 20V
- Outputs: 2 USB-C + 1 USB-A, 3 devices
- Compatibility: MacBook, iPhone, iPad, Galaxy
- 65W GaN, 3 ports, US/UK/EU plugs included
The Ugreen Nexode 65W is a compact USB-C wall charger with GaN II technology: it delivers up to 65W, enough to charge a MacBook Air at full speed (51% in 30 minutes) as well as an iPhone or a tablet. Its 3 ports (2 USB-C and 1 USB-A) power three devices at once, with power shared automatically. Shipped with interchangeable US, UK and EU plugs, it becomes the ideal travel companion to replace all your chargers with a single one, in a pocket format.
We replaced three chargers with the single Ugreen Nexode 65W, and it is exactly what you want from a good GaN charger: it disappears into a bag pocket and powers the MacBook, the phone and the earbuds at the same time. On the main port, the laptop charges at full speed, you get back half a MacBook Air's battery in a break, and plugging in a second device is no problem, power is shared without you having to think about it. We really appreciate the included US/UK/EU plugs: abroad, you leave the country adapter at home, a real space saver. The finish is solid and the case does not get warmer than it should. Two small caveats: when charging three demanding devices at once, each necessarily gets less than the port's 65W on its own, which is logical, and the USB-A is starting to look a little dated against all-USB-C. But for a single, compact, travel-ready charger at this price, the Nexode 65W is a safe bet we recommend without hesitation.
II - Battery chargers (AA/AAA/18650)
Switching to rechargeable batteries saves money and helps the planet, provided you have a good charger. A smart battery charger manages each slot individually, protects your cells and extends their lifespan, whether AA, AAA, NiMH batteries or lithium 18650 and 21700 cells. Discover the chargers we recommend.
Nitecore IntelliCharger i2 Charger
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A rugged, versatile charger that charges two cells at once, even of different types, from 18650 Li-ion to AA NiMH, with automatic chemistry detection.
- Charge: 1000 mA max (500 mA on 2 bays)
- Bays: 2 independent bays
- Compatibility: Li-ion/IMR (18650, 26650...) + NiMH/NiCd (AA, AAA, D)
- Auto chemistry detection, rugged, mains or 12V
The Nitecore IntelliCharger i2 is a universal charger that recharges two cells simultaneously, even of different types or sizes. It automatically detects the chemistry (Li-ion/IMR or NiMH/NiCd) and adapts the charge. It accepts a wide range of formats: Li-ion 26650, 22650, 18650, 18350, 17670, 14500, 10440, 16340/RCR123, plus NiMH/NiCd AA, AAA, AAAA and D cells. Simple, safe and tough, it runs on mains or a 12V car socket. Ideal for users of torches and 18650 cells.
The Nitecore IntelliCharger i2 is certainly not the newest or most sophisticated battery charger, but after testing more than 10 chargers of different brands and formats, our team kept this one for its simplicity and durability. It recharges the most common rechargeable formats without any trouble. Extremely solid and long-lasting (we have been using one at the office almost daily since 2014, and it still works without a hitch despite several drops). Protected against overheating and reverse polarity, it stops automatically when the cell is charged or after 10 hours of charging. We also appreciate that it can be powered via a car cigarette-lighter cable, which makes it even more versatile. In short, it only has small LEDs to show charging progress rather than a fancy LCD screen, it is rather rustic, but it is far better and less temperamental than most mains chargers on the market.
Olight UC Magnetic USB Charger
See price and availability (9)
Particularly clever, this small charger from Olight is able to recharge almost any cylindrical battery, via USB.
- Charge: 750mA via USB
- Slot: Charges a single battery at a time
- Compatibility: Lithium IMR/Li-ion, Nickel (Ni-MH/Ni-Cd)
- Ultra compact, universal (charges more than 30 battery types)
This minimalist battery charger was designed by Olight (a brand specializing in flashlights and torches). Powered via USB, it is able to charge a very wide range of different batteries and cells, as long as they are Lithium or NiMH/NiCD type and cylindrical in shape, with a current of 750mA. Shaped like a Y, it has a USB plug on one end, and on the other, 2 magnetic tips that attach to your battery's two poles thanks to two magnets.
Since the launch of this small battery charger, several brands have released a magnetic charger with a similar design. We've had the chance to test 4 others, and none is as good and versatile as the one from Olight. Nothing beats the original, then. Able to charge almost any cylindrical battery, this smart charger detects the battery's technology and charges it accordingly. Basically, it can charge any cylindrical lithium battery with a voltage of 3.6V/3.7V and any cylindrical NiMh cell with a voltage of 1.2V/1.5V. It's hard to get more versatile than this tiny device, which will find its place anywhere thanks to its feather-light weight of 20.5g, for example in an EDC kit or a Bug Out Bag. One of the best chargers on the market, and one of the Best Batteries team's favorites! (Would have scored 5/5 if several colors had been offered.)
Varta LCD Smart Charger+
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Clear LCD screen, handy USB power and 4 AA cells included: the good all-round compromise for the home.
- Formats: AA/AAA (NiMH)
- Screen: LCD (state, time left)
- Input: USB, 4 slots
- Included: 4 AA 2100mAh cells
- LCD screen and USB charging, 4 cells included
The Varta LCD Smart Charger+ is a straightforward smart charger for AA and AAA NiMH rechargeable batteries. It charges up to 4 cells with individual management of each slot, and its LCD screen clearly shows charge state and remaining time, cell by cell. Powered by a USB cable, it plugs into a mains socket, a computer or a power bank. Automatic detection and protections ensure safe charging. Supplied with 4 Varta AA 2100mAh cells, it is a versatile, readable set, ready to use straight from the box.
In use you quickly grasp what its formula is after: the LCD screen is genuinely pleasant, you see at a glance where each cell stands and how much time is left, no more guessing. The USB power is well thought out, we even used it on a power bank over a weekend. Individual charging lets you mix AA and AAA without trouble. The 4 supplied cells help you get started. Let us be honest about the limits: charging is not the fastest, and some of the included cells age less well than premium eneloop. It is not aimed at users chasing speed or fine analysis functions, but at everyday family use. But for versatile family use, with a clear screen and the flexibility of USB, it does the job very well at a reasonable price.
Nitecore UMS4 Charger
£29.38 (20)
The four-bay big brother of the UM2: the Nitecore UMS4 charges four cells at once over USB, up to 3A per bay, with a large and very complete LCD screen.
- Bays: 4 independent bays
- Charging: USB QC input, up to 3A per bay (4A total)
- Display: LCD: voltage, current, capacity, health
- Compatibility: Li-ion 10440 to 26650 + NiMH AA/AAA
- Four cells at once with detailed LCD monitoring
The Nitecore UMS4 is a smart four-bay charger that plugs in over USB. With a Quick Charge adapter, it delivers up to 3A on a single bay, or 4A shared across the four. Its large LCD screen shows the voltage, current, charged capacity, cell type and health of each cell in real time. It automatically detects the chemistry and accepts a wide range of formats: Li-ion/IMR/LiFePO4 from 10440 to 26650 (18650, 20700, 21700...) plus NiMH AA and AAA batteries. The reference for charging and monitoring several cells at once.
The UMS4 is the charger we keep on the bench when juggling a lot of cells. Four bays, a large and very complete LCD screen that shows, for each cell, voltage, current, charged capacity, type and health, and fast charging that reaches up to 3A on one bay with a Quick Charge adapter. It swallows the 18650, 21700 and 26650 cells of flashlights without complaint, and also takes AA and AAA NiMH. We like its simplicity: one USB source, and everything reads at a glance. Two honest reservations: you need a good QC adapter to get the full 4A total, and there is no clean cut-off without unplugging. But for charging and monitoring four cells at once, it remains a safe bet.
III - Car (cigarette lighter) chargers
On the road, in a motorhome or a van, the cigarette-lighter charger is essential to keep your devices charged. The best models offer several USB ports, fast charging and a compact design that fits neatly in the cabin. Here is our selection of efficient and reliable 12V car chargers.
Anker 30W Car Charger
See price and availability (40)
Two USB-C ports in a tiny body: the Anker 30W car charger quickly charges two devices at once without sticking out of the 12V socket.
- Power: 30W
- Ports: 2 x USB-C
- Technology: PowerIQ 3.0
- Format: Ultra-compact
- 2 USB-C and fast charging in a tiny body
The Anker 30W car charger is an ultra-compact car adapter with two USB-C ports. It delivers up to 30W and uses PowerIQ 3.0 technology to fast-charge smartphones and small devices, up to 3 times faster than a basic 5V charger. Its tiny format sits almost flush in the 12V socket, without getting in the way of the gear lever. It handles protection against over-voltage, over-current and overheating, and intelligently shares power between the two ports. Compatible with iPhone, Samsung Galaxy, iPad and most USB-C devices.
The Anker 30W car charger does exactly what you ask of it, no fuss. What I liked first is its size: once plugged in, it barely protrudes from the 12V socket, so it does not get in the way of the gear lever or storage, unlike many chargers that stick out several centimetres. The two USB-C ports are a real everyday comfort: driver and passenger can charge at the same time, and PowerIQ fast charging tops up an iPhone in a single trip. Anker's finish is neat, the body does not heat up worryingly, and the light ring helps find the ports at night. Two USB-C ports only, so an old USB-A cable needs an adapter, but that is the direction of travel. At this price, it is a reliable, clever little accessory I recommend for fitting any car.
Ugreen Car Charger 63W
See price and availability (28)
A powerful 63W car charger: one 45W USB-C fast-charging port and one USB-A port, to charge two devices at once in the car, even a laptop.
- Power: 63W total (2 ports)
- Ports: USB-C 45W (PD/PPS) + USB-A 30W (QC 3.0)
- Compatibility: Phones, tablets, USB-C laptops
- 45W fast charging and 2 devices at once, compact
The Ugreen 63W car charger turns the cigarette-lighter socket into a two-port fast-charging station. The USB-C port delivers up to 45W Power Delivery, enough to quickly charge a smartphone, a tablet or a light laptop, while the USB-A port (up to 30W, QC 3.0) powers a second device. Compact, made of aluminium and fitted with internal protections, it charges two devices simultaneously on the road. A reliable accessory from Ugreen.
On long trips, a good car charger changes everything, and this one really does the job. The 45W of the USB-C port charge the phone at full speed, and we were even able to keep a small USB-C laptop charging while it was running, which a basic car charger cannot do. The second USB-A port tops up the passenger's phone or a tablet at the same time. The aluminium body stays warm and well finished, it does not wobble in the socket, and the discreet light ring helps spot it at night. In everyday use, it is a safe choice. The only thing to know: to draw the 45W over USB-C, you need a good Power Delivery-compatible USB-C cable, which should not be overlooked.
Ugreen 145W Car Charger
See price and availability (18)
The all-in-one car charger: 145W to charge 4 devices at once, with a 70 cm retractable USB-C cable always to hand in the car.
- Power: 145W total, 100W max/port
- Ports: USB-C cable + 2 USB-C + USB-A
- Cable: Retractable 70 cm (60W)
- Compatibility: iPhone, MacBook, iPad, Galaxy
- 145W, 4 devices, retractable cable
The Ugreen 145W car charger turns the cigarette-lighter socket into a charging station: 145W of total power to charge up to four devices at once. Its 70 cm retractable USB-C cable (60W) extends and retracts with a single pull, joined by two USB-C ports and a USB-A port. A single USB-C port reaches 100W, enough to charge a MacBook Pro at full speed in the car. Cable tested for 25,000 retractions, with multiple protections: the ideal accessory for family trips.
We fitted the Ugreen 145W car charger on a long family trip, and it quickly won everyone over: the retractable USB-C cable is remarkably practical, you pull it to plug in the passenger's phone, and it tidies itself away, no more tangle of cables in the console. With its four outputs, everyone charges their device at the same time, and the power is more than enough, we even charged a laptop on the 100W port while the phones were charging. Being able to angle the cable across several positions is well thought out so it does not get in the way of the gear lever. The finish is solid and the case does not heat up abnormally. Two small caveats: the retractable cable is USB-C only, so for a Lightning or micro-USB device you will need to use a port and your own cable, and the price is a little above a basic cigarette-lighter charger, but you pay for the power, the built-in cable and the durability. To equip a family car, it is an excellent investment.
Baseus 65W Car Charger
See price and availability (12)
Powerful enough for a laptop: the Baseus 65W car charger combines USB-C 45W and USB-A 18W, with an LED screen that monitors the car battery.
- Power: 65W (USB-C 45W + USB-A 18W)
- Protocols: PD 3.0, QC 4.0/3.0
- Display: LED voltage display
- Input: 12-24V (car, truck)
- USB-C 45W for a laptop + voltage display
The Baseus 65W car charger is a dual-port car adapter: a USB-C up to 45W (PD 3.0 and QC 4.0) able to recharge a laptop, and a USB-A up to 18W. Its LED screen continuously shows the vehicle's battery voltage, useful information to monitor the electrical system's health. It accepts a wide 12-24V input, compatible with cars, SUVs, trucks and vans. Compatible with most fast-charging protocols (PD, QC, SCP, AFC), it is a versatile, sturdy charger with a neat metal body.
The Baseus 65W car charger is clearly a step up from the usual small car chargers. What makes the difference is the power of its USB-C port: at 45W, it not only charges smartphones at full speed, but also a light laptop or a tablet, which is rare on a cigarette-lighter charger. The 18W USB-A port nicely rounds it out for a second device. I really like the little LED screen: on start-up, it shows the vehicle's battery voltage, which helps spot a tired battery before it fails. The metal body feels serious and does not heat up excessively. Two reservations: it sticks out a little more than the ultra-compact models, and the screen, very visible at night, can be a touch bright for some. But for anyone wanting a powerful car charger, able to power a laptop and monitor their battery, it is an excellent choice.
IV - Car & motorcycle battery chargers
A car or motorcycle battery left unused slowly discharges and deteriorates. A charger-maintainer keeps the charge at the right level, revives tired batteries and prevents unpleasant starting surprises, especially after winter or a long lay-up. Here are the best battery chargers and maintainers on the market.
Einhell CE-BC 4 M Battery Charger
See price and availability (26)
Thirty-five pounds for a smart, IP65-sealed charger that handles gel, AGM and lead-acid, and can stay plugged in all winter without a second thought.
- Output: 4 A max, 6 V and 12 V batteries
- Compatibility: Lead-acid, gel, AGM, maintenance-free
- Sealing: IP65, dust and water splashes
- Convenience: LCD screen, winter mode, trickle charge
- A sealed smart charger under 35 pounds
The CE-BC 4 M is the entry-level charger our selection was missing, until now stuck with premium models above eighty pounds. For around thirty-five pounds it delivers 4 amps at both 6 and 12 volts, governed by a microprocessor that breaks charging into stages rather than blindly pushing current. The LCD shows voltage and progress, the trickle function lets you leave it connected for weeks without overcharging, and the IP65 rating makes it indifferent to dust and splashes. A dedicated winter mode adapts charging below 5 °C, which matters in an unheated garage.
The CE-BC 4 M owes its reputation to one thing: value for money. At thirty-five pounds you get the essentials of what models three times dearer offer. Microprocessor control splits charging into successive stages, which avoids cooking a battery at the end of the cycle, and the trickle function lets you leave it connected all winter on a car that sits idle. That is exactly the use we recommend it for: the weekend runabout, the motorcycle stored from October to March, the motorhome on its parking space. The IP65 rating deserves a mention at this price. Most rivals in this bracket settle for a closed housing with no declared rating; here dust and splashes are officially covered, which allows a damp garage or a garden shed. The winter mode is not a gimmick either: below 5 °C a battery accepts charge less readily, and the dedicated profile avoids working it as hard as in summer. Two limits to know about. Four amps is comfortable for a small car or a motorcycle battery, but slow on a large diesel estate or motorhome pack: expect a full night for a deeply discharged 100 Ah battery. And it does not handle LiFePO4 lithium batteries, increasingly common on motorhomes and boats; for those, look at the CE-BC 5 M LiFePO4 version. For everything else, it is hard to beat at this price.
Bosch C30 Charger
See price and availability (22)
The charger you find in every other garage: simple, robust, rated for batteries up to 120 Ah, and made by the world's largest automotive supplier.
- Output: 3.8 A, 6 V and 12 V batteries
- Capacity: Batteries up to 120 Ah
- Compatibility: Lead-acid, EFB, gel, AGM, SLI
- Function: Automatic trickle charging
- Bosch expertise on stop-start batteries
Bosch supplies a large share of Europe's original-equipment starter batteries, which lends particular weight to its chargers. The C30 sits at the centre of the C-Line range: 3.8 amps, 6 and 12 volt support, and a stated capacity of up to 120 amp-hours, covering the overwhelming majority of passenger cars including large-battery diesels. It handles the recent technologies, EFB and AGM included, found on every stop-start vehicle. Charging is electronically controlled and switches to trickle mode once the battery is full, with no intervention needed.
There is a simple reason the C30 has become the shelf reference: Bosch understands batteries better than anyone, since the supplier builds them for half of Europe's carmakers. That expertise shows on one specific point, the handling of EFB and AGM batteries. These technologies now fit every stop-start vehicle, they demand specific charging voltages, and many cheap chargers treat them as ordinary lead-acid, which shortens their life. The C30 applies the right profile. The second argument is admissible capacity: 120 amp-hours, where most chargers of this size stop well short. In practice it is not limited to the city car, it also copes with the large diesel saloon and the family MPV. At 3.8 amps charging stays slow on a deeply flat battery, but that is the very principle of this class of device: gentle charging wears the plates less than a brutal one. In use the housing is sturdy, the clamps are decent, and the supplied carrying case saves you from finding tangled cables in a corner of the garage. Two honest remarks. Status reporting is limited to indicator lights, with no screen: you know roughly where charging stands, not to the percentage, which the Einhell CE-BC 4 M displays for a good fifteen pounds less. And like most lead-acid chargers, it does not handle LiFePO4 lithium. At fifty pounds it is a purchase of peace of mind rather than a bargain, but the reliability is there.
CTEK MXS 5.0
See price and availability (14)
The CTEK MXS 5.0 charger-maintainer (5 A, 8 stages) charges and maintains your 12 V batteries (motorcycle, car, AGM) fully automatically, with a reconditioning mode.
- Charge: 0.8 / 5 A (12V)
- Batteries: Lead-acid 1.2 to 110 Ah (maintenance 160 Ah)
- Program: 8 stages, incl. reconditioning
- Protection: IP65, reverse-polarity and short-circuit
- 8-stage auto charge, reconditions, 5-year warranty
Developed in Sweden, the CTEK MXS 5.0 is a benchmark battery charger: fully automatic, it delivers 0.8 or 5 A and suits all 12 V lead-acid batteries from 1.2 to 110 Ah (flooded, AGM, gel). Its 8-stage charging includes a reconditioning mode to recover deeply discharged batteries, temperature compensation and IP65 sealing. Reverse-polarity protected, spark-free and backed by a 5-year warranty, it is a safe bet to maintain a car, motorcycle or boat.
We have used the CTEK MXS 5.0 for years to maintain the batteries of cars and motorcycles that sit through winter, and it has never let us down. Plug it in, choose the mode, and forget it: it does the rest, unattended, and switches off on its own once the optimal charge is reached. The reconditioning mode even saved us a motorcycle battery we thought was dead after a long lay-up. It is dead simple to use, the clamps and the permanent M8 eyelet are handy, and the IP65 sealing lets you leave it connected in the garage without worry. The only small downside is the price, a little above an entry-level charger, but the reliability, safety and 5-year warranty more than justify it. For anyone who wants a charger that lasts and looks after their batteries, it is the benchmark.
Einhell CE-BC 5 M LiFePO4 Charger
£47.84 (5)
The only charger in our selection at under fifty pounds that handles a lead-acid car battery and a LiFePO4 lithium pack equally well.
- Output: 5 A max, automatic battery-type detection
- Chemistries: LiFePO4, gel, AGM, lead-acid
- Modes: Trickle, power supply, reconditioning
- Protection: Overload, short circuit, reverse polarity
- LiFePO4 lithium support for under fifty pounds
Lithium iron phosphate batteries have taken over motorhomes, boats and solar installations, yet most garage chargers still refuse to touch them: their charging profile has nothing in common with lead-acid. The CE-BC 5 M LiFePO4 solves that for just under fifty pounds. It automatically detects the type and state of the connected battery, then applies the right programme, whether LiFePO4, gel, AGM or conventional lead-acid. Five amps, an LCD showing voltage and progress, and three genuinely useful modes: trickle charge, continuous power supply and reconditioning.
This model answers a very concrete problem faced by motorhome and boat owners: their leisure battery has moved to lithium iron phosphate, but the charger in the garage only knows how to charge lead. Connecting a lead-acid charger to LiFePO4 is not harmless: end-of-charge voltages differ, and some chargers do not even detect a protected cell that has tripped into safety mode. Einhell offers here the cheapest way to cover both worlds, with automatic battery-type detection that removes the risk of a wrong setting. The five amps place the unit a notch above the CE-BC 4 M, which partly offsets the slowness inherent to this class of domestic charger. The power supply mode is a clever addition, usually reserved for far dearer models: it keeps the vehicle's electrical circuit live while you disconnect the battery, so a modern car does not lose its stored settings. The reconditioning mode applies voltage pulses meant to break down the sulphation on a tired lead-acid battery; results are real on a weakened battery but no miracle on a dead one. Two reservations. The first is track record: this recent model still lacks the history of its sibling, which has been on sale for far longer. The second is the absence of any declared sealing rating, where the CE-BC 4 M claims IP65; keep it out of a genuinely damp garage. If you own no lithium batteries, the 4 M remains the better buy. As soon as there is LiFePO4 in the garage, the price gap is quickly justified.
V - Related questions
GaN (gallium nitride) replaces silicon in wall chargers. It runs cooler and handles higher power, allowing much more compact and efficient chargers at the same wattage. A 65W GaN charger fits in the palm of your hand and can recharge a laptop.
Yes. A smart charger monitors each cell individually, stops charging at the right moment and prevents overheating. As a result, your batteries and cells last significantly longer and keep their capacity better, unlike a basic charger that charges everything uniformly.
A charger recharges a flat battery. A maintainer (or charger-maintainer) goes further: once the battery is full, it automatically keeps the charge at the optimal level over long periods, without any risk of overcharging. Ideal for a car, motorcycle or motorhome left idle for several weeks.
