Power Bank Control Circuit. only Li-ion battery can be attached. Attach only one battery, don’t use multiple batteries in parallel.
1. Overcharge, overdischarge, short circuit protection, does not need to worry about the time of charging
2. Intelligent Output.When equipment is fully charged, it will stop charging automatically to prevent from overcharging
3. Output voltage and current is stable, never to damage user’s device
4. Operating temperature range is wide (-20 Clecius—50 Clecius),can provide over tmperature protection
5. Includes LED lamp (long press or double click power key can start)
6. four LED light display battery percentage, non-operating state will be intelligently off