Anker Nano A1653
(57 reviews)
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.
Buy at AmazonAs an Amazon Associate I earn from qualifying purchases.
Characteristics
- 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
Detailed overview: Anker Nano 5000 mAh power bank
The Anker Nano Power Bank (reference A1653) is an ultra-compact 5000 mAh power bank whose big idea lies in its connector: a foldable USB-C plug, built into the body, that flips out and plugs directly into the phone. No cable needed for a quick top-up: you clip the battery onto an iPhone 15/16 or a USB-C Android phone, and charging starts.
On power, it delivers up to 22.5 W (PowerIQ 3.0, 3 A), enough to charge a smartphone at a good pace: about twenty minutes are enough to recover a comfortable chunk of range. A second USB-C port complements the built-in plug: it serves to charge a second device or to recharge the battery itself. Four LED indicators show the remaining level.
With its 5000 mAh (around 18 Wh), it delivers in practice a full recharge for most phones, the ideal top-up to last a day. The whole thing weighs barely 100 g in a cube shape of roughly 7.7 x 3.7 x 2.5 cm, which slips into a jeans or jacket pocket without a thought.
Anker also cares about durability: the shell is made largely from recycled plastics, and ActiveShield 2.0 technology monitors temperature continuously for safe charging. Available in several colours (here in black), the Nano A1653 is one of the handiest pocket power banks for anyone wanting backup power without ever bothering with a cable.
Full specifications
Detailed characteristics (EAN: 0194644235475)
Battery
| Rated capacity?Cell capacity in milliamp-hours, as stated by the manufacturer. | 5000 mAh |
|---|---|
| Actual energy?Actual stored energy in watt-hours; what matters for runtime and air travel (100 Wh cabin limit). | 18.5 Wh |
| Battery chemistry?Cell type; LFP lasts longer, Li-ion/LiPo is lighter. | LiPo |
Output (device charging)
| Max output power?Maximum total power delivered; above 60 W it can charge a laptop. | 22.5 W |
|---|---|
| USB-C ports?Number of USB-C ports and the fastest port's power. | 2 × 22.5 W |
| Fast-charge protocols?Supported fast-charge standards (PD, QC, PPS…); PD/PPS is the most universal. | USB PD |
| Wireless charging (Qi)?Inductive charging of a phone placed on top, and its power. | No |
| Magnetic attachment (MagSafe)?Attaches magnetically to the back of a MagSafe-compatible iPhone. | No |
Recharging the power bank
| Recharge power (input)?Maximum input power to recharge the power bank; higher means faster. | 22.5 W |
|---|---|
| Pass-through charging?Can charge a device while being recharged itself (pass-through). | Yes |
Cable and interface
| Built-in cable?A cable is permanently attached to the power bank (nothing extra to carry). | Yes |
|---|---|
| Retractable cable?The built-in cable retracts into the housing. | No |
| Cable included?A cable is included in the box. | No |
| Display?Level display: simple LED indicators or a digital screen (%, watts). | LED indicators |
| LED light?Built-in LED torch / light. | No |
Form factor
| Weight?Weight of the power bank, in grams. | 100 g |
|---|
Availability and warranty
| Market launch?Date the model first became available on the European market. Useful to place its generation: technology moves fast in this segment, and a device several years old may be at the end of its commercial life. | August 2023 |
|---|
User manual / Instructions for use
⚡ How many charges with this power bank?
With 18.5 Wh of capacity, the Anker Nano A1653 power bank recharges iPhone 16 ~1 times or Samsung Galaxy S25 ~0.9 times.
| Smartphone | Charges |
|---|---|
| iPhone 16 Pro | ~1 |
| iPhone 17 | ~0.9 |
| iPhone 15 Pro Max | ~0.8 |
| iPhone 17 Pro Max | ~0.7 |
| Tablet / console | Charges |
|---|---|
| Nintendo Switch 2 | ~0.7 |
| iPad (A16) | ~0.5 |
| Xiaomi Pad 7 | ~0.4 |
| Asus ROG Ally | ~0.3 |
Rough estimate: real-world losses (conversion, cable, heat) are around 25 to 35%.
Comparison
At around £17 to £30, the Anker Nano A1653 compares with the most sought-after 5000 mAh pocket power banks, through searches such as "Anker Nano A1653 review" or "best USB-C pocket power bank". Here is how it sits against three alternatives: the Belkin BoostCharge 5K, the Baseus 5000 with built-in cable and the magnetic Anker 621 MagGo 5K.
| Criterion | Anker Nano A1653 | Belkin BoostCharge 5K | Baseus 5000 (built-in cable) | Anker 621 MagGo 5K |
|---|---|---|---|---|
| Capacity | 5000 mAh | 5000 mAh | 5000 mAh | 5000 mAh |
| Connectivity | Built-in USB-C plug + USB-C | USB-C + USB-A | Built-in USB-C cable + USB-C | Magnetic + USB-C |
| Power | 22.5 W | ≈ 12 W | ≈ 20 W | 7.5 W wireless / 12 W USB-C |
| Weight | ≈ 100 g | ≈ 130 g | ≈ 120 g | ≈ 130 g |
| Observed price | ≈ £22 | ≈ £21 | ≈ £26 | ≈ £30 |
In short, the Anker Nano A1653 is all about convenience: its built-in USB-C plug makes it the simplest to whip out, with no cable or stand, and its 22.5 W place it among the fastest in its class, all in the lightest format. The Belkin plays the dual USB-C and USB-A card at a low price, the Baseus carries a cable for devices a little further away, and the Anker 621 MagGo adds slower magnetic wireless charging for iPhone. For a minimalist, always-ready pocket top-up, the Nano A1653 remains the benchmark.
Related video
Video: Review: Anker Nano Power Bank with Built-in Foldable USB-C Connector, 5000 mAh 22.5W - Published on 05/04/2024
Our tester's review: Guillaume Hoarau
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.
Frequently asked questions: Anker Nano 5000 mAh power bank
With its 5000 mAh (around 18 Wh), it delivers in practice a full recharge for most smartphones, the ideal top-up to last a day. On phones with a very large battery, expect a little under one full charge.
No. It has a built-in foldable USB-C plug that flips out and plugs directly into the phone, with no cable. An extra USB-C port is there to charge a second device or recharge the battery itself.
It delivers up to 22.5 W (PowerIQ 3.0, 3 A) on its USB-C output. That is enough to charge a smartphone at a good pace and recover a comfortable chunk of range in about twenty minutes.
Yes, with iPhone 15 and 16 fitted with a USB-C port, as well as USB-C Android phones. Older Lightning iPhones need an adapter, since the built-in plug is USB-C.
Yes. At around 18 Wh, it stays well under the 100 Wh cabin limit set by most airlines, with no special procedure needed.
Need help choosing?
Other products in the "Compact power banks" category
Anker Zolo 10000 (30W)
See price (55)
A 10,000 mAh pocket pack with its USB-C cable already attached: 30 W fast charging and three devices powered at once, with no cord to carry.
Nitecore Carbon 6K
£30.13 (6)
88 g, IP68 and a carbon-fiber shell: the Nitecore Carbon 6K is an ultra-portable 6000 mAh power bank that also extends Nitecore 6K headlamps.
Nitecore NB10000
60.78€ (9)
Ultralight (150 g) and clad in carbon fibre, the Nitecore NB10000 offers 10,000 mAh that shrug off water and knocks, ideal for hiking.
Nitecore Pocket 10000
£62.95 (8)
10,000 mAh and a built-in USB-C cable in 12.5 mm of thickness: the carbon-fiber Nitecore Pocket 10000 slips in anywhere, for just 160 g.
Published on 08/07/2026, updated on 14/08/2026