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X-DRAGON Power Bank 10000mAh External Battery Pack USB C £8.15 (Prime) / £12.64 (non Prime) @ Brilex-EU FB Amazon
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X-DRAGON Power Bank 10000mAh External Battery Pack USB C £8.15 (Prime) / £12.64 (non Prime) @ Brilex-EU FB Amazon

Expert (Beta)8
Expert (Beta)
Posted 21st Jan

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Looks good to me, u der a tenner with 2 USB ports and USB C quick charge.
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  • ❤The Smallest 10000mAh Portable Charger: It adds 3 times for iPhone 8, 2 times for large capacity cell pohone like iphone X and galaxy s8, and 1 time for iPad mini;
  • ❤Dual 2A Inputs & 2.4A Output: Micro and Type C dual input, save recharging time up to 20%-30% compared to 1A input of other power bank. Dual 2.4A output, Build-in smart IC chip for dual 2.4A Ports to charge two devices
  • ❤Digi-Power Technology: Smart digital screen shows remaining power in digital format, just like the smartphone - warning you when it needs to be charged.
  • ❤Elegant Mirror Surface: The mirror surface makes the power bank much more slap-up. It could be used as a mirror. The round edge makes it easy to hold.
  • ❤Safety Guarantee:It is FCC, RoHS, CE certified. Surge protection, short circuit protection and more advanced safety protections keep you and your devices safe
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8 Comments
I got this bigger one from same brand,
Power Bank X-DRAGON 15600mAh External Battery Pack Portable Charger Bright LED for iPhone, iPad, Samsung, Cell Phone and Tablets amazon.co.uk/dp/…fhQ

can't fault it in terms of performance. Hot
10000 mAH doesn't sound right if it can only charge an iPhone 8, 3 times?

Assuming the battery is 3.7V then that would mean a capacity of 37Wh. Even at a conversion loss of 10% that would still allow 33.3Wh.

The iPhone battery is about 7Wh so should be able to charge it almost 5 times.
Gormond21/01/2020 09:22

10000 mAH doesn't sound right if it can only charge an iPhone 8, 3 …10000 mAH doesn't sound right if it can only charge an iPhone 8, 3 times?Assuming the battery is 3.7V then that would mean a capacity of 37Wh. Even at a conversion loss of 10% that would still allow 33.3Wh.The iPhone battery is about 7Wh so should be able to charge it almost 5 times.


Power banks typically achieve around 60-70% of their rated capacity if you directly compare mAh like that. This sounds about right - 3 and a bit times for an iPhone 8 for a 10000mAh unit; all phones use some extra power (parasitic loss) while charging up unless you turn them off completely.
There suddenly seems to be a lot of power bank's popping up on here from some very curious companies. Each to their own, not I'm not about to risk leaving one of these plugged in, unattended for a few hours. Spending a couple more quid for once is worth the piece of mind.
plewis0021/01/2020 09:27

Power banks typically achieve around 60-70% of their rated capacity if you …Power banks typically achieve around 60-70% of their rated capacity if you directly compare mAh like that. This sounds about right - 3 and a bit times for an iPhone 8 for a 10000mAh unit; all phones use some extra power (parasitic loss) while charging up unless you turn them off completely.


Fair enough but that sounds very low, Anker power banks for example have an efficiency of around 95%.
People, you want to splash your money on real quality? Go for ZENDURE powerbanks.
You want to complain?Built your own powerbank.
You want to be helpful?Post deals of decent-even-if-not-perfect-but-affordable ones, be realistic and study the topic enough so that you know what is worth buying.
Edited by: "italondonistaavataurino" 21st Jan
deleted50493121/01/2020 09:29

There suddenly seems to be a lot of power bank's popping up on here from …There suddenly seems to be a lot of power bank's popping up on here from some very curious companies. Each to their own, not I'm not about to risk leaving one of these plugged in, unattended for a few hours. Spending a couple more quid for once is worth the piece of mind.


Might be worth sending one to BigCliveLive for him to check out

It is shocking how unsafe some of them turn out to be.
Gormond21/01/2020 09:33

Fair enough but that sounds very low, Anker power banks for example have …Fair enough but that sounds very low, Anker power banks for example have an efficiency of around 95%.


They don’t - if you mean it’ll do 9500/1900 = 5 charges. If you get an Anker 10000mAh unit (I have a 12000mAh one) and try to charge a powered-on iPhone 6/7/8 (smaller one) it’ll do it about 3 and a bit times. Not arguing, I’m saying they’re all in this range. You get wasted heat, step-up to 5V and step-down plus other losses.

Yes, some are unsafe but these days I think they’re pretty good - I probably wouldn’t leave an unknown brand one on charge and walk off or go out, but they all typically use a big Li-Po or 18650 cells with safety cut-offs.

Anyway, it’s got plenty of high-rated reviews and from the detail I doubt it’s fake.
Edited by: "plewis00" 21st Jan
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