All iPhoners want extra battery life on their Apple iPhone 3G, all that internet surfing, sending images and texts, listening to music, playing those game apps, watching videos, and generally talking all uses battery life.

So what’s needed is a way of extending that battery life right? So, the all new mophie “Juice Pack 3G” can and will extend the life of your Apple iPhone 3G battery.

Here’s what you get with the mophie “Juice Pack 3G”…up to 6 hours talk-time on 3G and up to 12 hours on 2G…up to 350 hours of standby time…as for internet usage, up to 6 hours on 3G or 7 hours on 2G…video playback you get up to 8 hours…while audio playback you get up to 8 hours.

Source