... :5.2V-5.5V Portable mobile power case for ipod and iphone case1.The battery types: the lithium ... for i-phone,i-pad,i-pod,MP3,MP4,GPS ,cell phone,bluetooth device ,some tablet PC and ... protector to safely avoid over-charging,over-discharging and short circuit. 10. Intelligent single-chip ... computer control the power, steady and high efficiency.11.Long using time, portable size ...