has anyone used this battery pack?

[dvigue]

iPhone 4 Battery Pack - offGRID

looks really nice and thin....

 

[Totalimmortal363]

I seriously get amazing battery life, what are people doing that you need one of these fugly battery packs??

 

[dvigue]

Well I drop a bout 10%per hour with just texting, 3G off, no push. That's not good to me.