battery charging etc

[dickturpin]

anyone used anything like this....

http://www.ebay.co.uk/itm/18000mAh-Emerg...54169d8f18

Didn't realise such things were available till today...very small and compact....good for emergencies etc?.....or are they rubbish???

[slappy]

You would have to remember to keep it charged up wouldn't you?

[dickturpin]

supposed to hold charge 3-6 months

[darrsi]

They're a bit gimmicky.
If anything they'd be more useful for a car if you were caught out, but i've had a totally flat battery on the bike before but it bump started so easily it wasn't really an issue.
You can get them for mobile phones too.

[chaz]

I didn't think it would work but here's a test ?
http://youtu.be/cFp3SXToHcQ