🔄 Last updated: 26 August 2026 — real prices checked on eBay (professional sellers only, feedback ≥99%).
The right power bank depends on what it has to charge: for a smartphone, 10,000 mAh and 20-30 W are enough; for a laptop you need 20,000+ mAh and 100 W or more. Three things make the real difference: charging power (watts, not just mAh), a built-in cable (extremely handy) and the real price — which, as always, varies quite a bit from shop to shop.
Here is our selection with the real prices checked on 26 August 2026, from the 18-euro pocket model to the laptop-ready "charge-anything" unit.
INIU 10000 mAh 22,5W — the pocket-sized best buy
The most recommended power bank on the web: 10,000 mAh in a slim format, 22.5W fast charging and three ports (including USB-C in/out). At 18,99 € it is the obvious choice for your everyday bag or backpack. There is also an ultra-slim 15W variant at 17,99 € for those who put minimum thickness first.
Prices checked: eBay 18,99 € (22.5W, 99.3% feedback) · 17,99 € (slim 15W version, 100% feedback)
Who it's for: daily smartphone top-ups: roughly two full charges for most phones.
Xiaomi 20000 mAh 33W con cavo integrato — affordable capacity
Double the capacity at a tiny price: 29,90 € for 20,000 mAh with 33W charging and a built-in USB-C cable — so you can't forget it at home. Perfect for weekends and trips where there is no socket in sight for a whole day.
Prices checked: eBay 29,90 € (99% feedback, model BHR8851GL)
Who it's for: anyone who wants 4-5 full smartphone charges for less than 30 euros.
Ugreen Nexode 20000 mAh 100W — for your laptop too
A step up in class: 100W over USB-C with Power Delivery, enough to charge a MacBook or an ultrabook at the speed of the original charger. With a 100W USB-C cable included, at 46,77 €. Anyone who wants even more headroom will find the 145W Nexode version from 63,64 €.
Prices checked: eBay 46,77 € (100W, 100% feedback) · from 63,64 € (145W version)
Who it's for: anyone who travels with a laptop and a phone and wants a single accessory for both.
Anker 737 PowerCore 24K — the power station
The high-end benchmark: 24,000 mAh, up to 140W bidirectional, a display showing input/output watts and remaining time, three ports. Impeccable build quality, for years the standard for people who work on the move. 109,77 €.
Prices checked: eBay 109,77-113,99 € (feedback ≥99%)
Who it's for: professionals on business trips: laptop + phone + headphones from a single power bank, for days.
Quick comparison — prices verified on 26 August 2026
| Model | Capacity | Power | Best price found | Ideal for |
|---|---|---|---|---|
| INIU 10000 | 10.000 mAh | 22,5W | 18,99 € | Smartphones, everyday use |
| Xiaomi 20000 (built-in cable) | 20.000 mAh | 33W | 29,90 € | Travel, multiple charges |
| Ugreen Nexode 20000 | 20.000 mAh | 100W | 46,77 € | Laptop + smartphone |
| Anker 737 PowerCore 24K | 24.000 mAh | 140W | 109,77 € | Professionals on the move |
Our advice
For your smartphone: INIU 10000 at 18,99 € — there's no need to spend more.
For travel: Xiaomi 20000 with built-in cable at 29,90 €.
For your laptop: Ugreen Nexode 100W at 46,77 €; the Anker 737 only if you really need the capacity and the display.
Keep an eye on the phone the power bank will have to charge, too: in our guides to mid-range smartphones and cheap smartphones we also point out charging speeds.
What is the best-value power bank in August 2026?
The INIU 10000 mAh 22.5W at 18,99 €: the right capacity for a smartphone, fast charging and a slim format. If you need it for a laptop too, the Ugreen Nexode 100W at 46,77 € is the best compromise.
Can I take these power banks on a plane?
Yes, all the models in the ranking: the standard airline limit is 100 Wh, and even the largest (Anker 737, 24,000 mAh ≈ 88.8 Wh) stays below the threshold. They always go in hand luggage, never in the hold.
How many full charges does a 10,000 mAh power bank give?
Allowing for conversion losses (~30-35%), a 10,000 mAh unit charges a smartphone with a 5,000 mAh battery about 1.5-2 times. A 20,000 mAh one manages 3-4 full charges.
The prices shown were checked on 26 August 2026 on eBay.it (professional sellers with feedback ≥99%, new products) and may vary.
Translated from the Italian original. Read in Italian
