How many charge cycles do you get in the juice pack for iPhone 3G?
the juice pack is rechargeable for over 500 cycles (Full cycles, partial cycles don’t count as full. So, you can charge your juice pack 10% of the way 10 times before it counts as a complete cycle.) Don’t be afraid to top it off! After 500 cycles, its fully charged capacity will be less than 75% of the the capacity when it’s new.