Up to 38 hours non-stop 3G iPhone movie playing time IMax-5000v, the most powerful 3G iPhone iTouch External Backup Li-ion battery will extend your 3G iPhone iTouch movie time up to 38 hours total 400% of 3G iPhone battery life! This is ultra powerful and reliable Li-ion 3G iPhonebackup battery power pack, which can immediately add 38+ hours video playinng and 180 hours Audio playing time to your 3G iPhone, iTouch and iPod classic MP3 player, which is the largest capacity 3G iPhone battery that you can find in the whole market! Its capacity is 5000mAh at 3.7V output voltage.It can be directly recharged up via AC charger and USB port. It can power up your mobile device through a USB cable. This battery pack are light in weight (120g) and environmental safe Key benefits for the Li-ion battery pack IMax-5000v ·Boost 3G iPhone video play time up to 38 hours (with speaker on) ·Total 400% of 3G iPhone battery, light weight 130g, mini size 3.9×2.2×0.6 ·Boost 3G iPhone interne (more…)