external extended battery packs

For those of you that have external extended battery packs, can you tell me which one you have and how you like it? I have a 4S and 2 iPad2 64gb that we'd like to keep charged while camping.

I've seen hyperjuice advertised only because they're in the Mac magazines that I subscribe to. Are there other brands out there that are better quality or more reliable?

I currently own the mophie juice pack plus for my iphone 4. Works really well when your needing a little extra "juice". I also know Mophie has other external battery packs for both iphone and ipad.

I have the same one and from a dead phone I can get 1 and 1/4 charges off mine.
It does make it thicker, turning the sexy iPhone into a fat kid.

AlanSr said:

I have the same one and from a dead phone I can get 1 and 1/4 charges off mine.
It does make it thicker, turning the sexy iPhone into a fat kid.

Click to expand...

...a fat kid? I don't think that's necessary.

You can buy one on amazon, for example, anker/new trent/powergen