Buying a power bank

Horlock

It is easy enough to find power banks on ebay for about £10 which claim to be 100000mAh. While branded products a fifth of that size claim to retail for £60 eg https://www.amazon.co.uk/Anker-PowerCore-Qualcomm-Backwards-Compatible/dp/B01D0WDWL8

The question is how to know where to start and how not to be ripped off!

Its main use will be to recharge a failing phone battery, or even to use the phone while plugged in. The powerbank option appears cheaper than a replacement phone battery and can be used for other purposes too.

Perhaps I'm being too harsh? But I'm guessing the "100000mAh" is make believe, and literally a result of someone writing bigger numbers to catch suckers.

http://www.ebay.co.uk/itm/Portable-100000mAh-Dual-USB-Solar-Battery-Charger-Solar-Power-Bank-For-Phone-UK/332330176134?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Seems like a good cheap example of what I'm talking about. The listing claims to be 100000mAh.
The photographs says 1300mAh.
The description says 50000mAh.

To be honest I don't have a clue what I need - but I don't want to ripped off.

Possibly all the Chinese models are identical with a different name written on them. But if really all they mean is that they have an extra zero for good measure then a 100000mAh which is actually 10000mAh for £10 is still better value than buying elsewhere (and also better value than buying a chinese 50000mAh for £9 - but if they are the same product with better branding then a a 50000mAh for £9 may be better).

Anyone with any real experience?

Ultimately I don't need super high power, but I do need my house to not burn down with my kids in it!

I_have_spoken

Get a Suaoki and it'll also jump start the car - https://www.amazon.co.uk/d/u6g/Suaoki-Starter-8000mAh-Power-Flashlight-Intelligent-Clamps/B01LPEVTPY/

alanwsg

Go for Anker, they have an excellent reputation.
Buy them via Amazon.

SouthUKMan

As a complete alternative to the above mentioned (and excellent) examples, Poundland sell charging bricks for... £1. And as a bonus there is a choice of colours including, black, white, purple and green. They are the lowest mAh rated 'bricks' you can buy - BUT in my experience they hold charge ok and have enough juice to recharge a dead iPhone 6 to about 50% - certainly enough to get you out of a tricky situation at the end of the day. I tend to keep one in my car and carry another with me if I know I'm going to be out and about on the train a lot (when I use my phone to watch movies). The Poundland bricks are so cheap, you can always buy a couple so that one is always fully charged and ready to go

grumpycrab

Horlock wrote: »

Its main use will be to recharge a failing phone battery, or even to use the phone while plugged in.

A few choices on Amazon e.g.
https://www.amazon.co.uk/Anker-PowerCore-20100-Capacity-Technology-Black/dp/B00VJSGT2A/
20% off at the moment
Quite heavy and I'd replace the phone battery first (if it's replaceable).

LadyDee

https://www.amazon.co.uk/PowerCore-Portable-Ultra-Compact-Fast-Charging-Technology/dp/B01CU1EC6Y/ref=pe_2118791_207721121_dotd_h_t