Dual Micro USB 3.7v to 5V 2A Mobile power bank charging module DIY 18650 Lithium Battery with LED. This is the mobile power module Accessories, 18650 Circuit board shell.
- 4-level LED lamp display power, not working state intelligent automatic shutdown;
- The built-in lithium battery protection IC, over-current, overpressure, under-voltage protection;
- Dual USB output ports.
- Input requirements: 5V constant voltage power supply can do charge input power, the most matching charger for 5V 1A above
- Requirements for rechargeable batteries:
- Compatible Batteries: 18650 batteries, cell phone batteries, flat-panel batteries, MP3 batteries, etc. 3.7v-4.2V polymer Lithium battery.