... high capacity rechargeable li-ion battery.6. 5000mAh capability, powerful with long operation time.7. Double USB output,out 1 (1A) ,out ... again stop charging.9. Security guard: With a special lithium battery protection board .effectively prevent over charging ,over discharging, over ... current, short circuit, etc.10. Plug and Play: Use USB port to supply power, you can charge digital product at ...