Hi,

I have lots of rechargeable AA batteries and I thought I could make a small powerbank using them to charge my phone. I know it may only charge it once per charge, since my batteries (Eneloops) are "only" 2000mAh, but... well... I like to do this things.
And so I ordered this: http://www.ebay.co.uk/itm/111814363258


But then I also thought I could use it to power my Raspi.
Since I'm not using wireless, just 1 or 2 USB discs (both self-powered), I thought it could feed them for a good few hours, at least.

Do any of you have an idea of the Raspi 2 power consumption?
Listening to music or watching movies makes a lot of difference regarding power consumption?

Also, I'm not sure if the battery case has some type of electronics to "garantee" 5V output, but I'd say it doesn't and I could count with a clean battery power output.
What do you guys think?


Thanks,
Luis