Mobile phone power banks

Strider590

Anker and Ravpower would be my only choice for reliability and safety.

I do also have a really quite good "cheap" 2500mAh powerbank branded "Sumvision", which has served me very well indeed, the capacity is genuine, I have the equipment to test this accurately.

I've also tested those cheap solar powerbanks (purely out of curiousity) and found 16'000mAh powerbanks that actually only have 3000mAh capacity and in one of them the solar panel wasn't even wired in.

arrallas

The Wire cutter is a great source for thorough testing of products. US based, but often helpful. Their recommendations for external chargers are here http://thewirecutter.com/reviews/best-usb-battery-packs/

LadyDee

Le_Kirk wrote: »

That's the modern equivalent of what my Mum used to say "Always wear clean underpants in case you have an accident" now becomes "Always take a fully charged phone in case you have an accident"

Oh, that too! Glad I took my old mum's advice on that particular day:o