... battery types: the lithium ion battery 3.Capacity: 1900 mAh 4.Input&Output:: 5 V / 800 mA Portable Power Supply for ... ,i-pod,MP3,MP4,GPS ,cell phone,bluetooth device ,some tablet PC and other digital products.9. With a precise IC protector ... to safely avoid over-charging,over-discharging and short circuit. 10. Intelligent single-chip computer control the power, steady and high ...