Power bank pack for mobile charging

Ariel Badger · Super Spammer Joined: 02 Dec 2006 Karma :

I need a new one as my previous charger has ceased to work after 2 years. Looking on Ebay they are mostly the same size 150mm X 70mm X 20mm but the power ratings vary from 5600Mah to 200000Mah. They all contain Li-ion cells and I think that 20000Mah is a more realistic figure to what can be crammed into that space. Buyer feedback indicates that therre are very many packs with fictional ratings. Any recommendations please?
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Itchy · Super Spammer Joined: 07 Apr 2005 Karma :

Nope not really it's a game of roulette.

The only way you can find out is buy them and stick them into a smart charger like an acucel or Turnigy. My turnigy (which I use to charge LIPOs for a UAV I've been playing around with) tells me how many MAh it's put into the battery and allow balance charging across the cells.

The variations on the MAh even from the same shop and same brand can vary as much as 25% each way.
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R1stu · Shrek! Joined: 12 Mar 2003 Karma :

I've just ordered one, so will let you know. I had a 10amp which was good, until i lost it. Done me for a few days fishing keeping iPad and phone topped up.
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t121anf · World Chat Champion Joined: 23 Feb 2007 Karma :

I've got this

https://www.amazon.co.uk/gp/product/B00F5Q4F0U/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

Can get 2 tablets charged from a full battery.

I read somewhere the mah figure appears inflated as the voltage is different, I.e usb is 5v the battery is different.

herulach · World Chat Champion Joined: 19 Apr 2010 Karma :

I have had this one for about 2 years (got it on a sale, maybe thanksgiving 14):
https://www.amazon.co.uk/gp/product/B00M1J93TC/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

Can't speak for exact capacity, but can charge my tablet, mrs' tablet with enough left for a phone. Also does fast charge on output which is nice.
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dydey90 · World Chat Champion Joined: 01 Oct 2013 Karma :

I have one of these. Bought two years ago for a festival, still going strong. No real dip in battery life, even if it is only 10Ah.
Only gripe is that the micro usb charger port is starting to get a bit worn through use and has started playing up a bit.
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chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

I've bought several for me and family that are Anker Branded they are very good IMO.
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Jewlio Rides Again LLB · World Chat Champion Joined: 06 Oct 2015 Karma :

Dennis_B · Nova Slayer Joined: 06 Jun 2016 Karma :

I got stuck at some services when my bike broke down, ended up buying a AKEKIO 7800mAh dual output pack. Services prices, cost me £19, charged my then phone (galaxy S3), so happy with that. They can be a god send.

Ariel Badger · Super Spammer Joined: 02 Dec 2006 Karma :

I was drawn to that one but stupid Amazon delivery means that as it is one pence under £20 it is subject to about a fiver postage.
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Jewlio Rides Again LLB · World Chat Champion Joined: 06 Oct 2015 Karma :

If you want, paypal me teh ponds and your details, I'll stick it on my Prime for you. Thumbs Up

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orac · World Chat Champion Joined: 25 Sep 2011 Karma :

I got all excited when I saw numbers that would mean 2e^11 amp hour from a battery pack, then realised typo. big M and little m makes a difference
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