5V 2A Dual USB Output Power Bank Module Step Up Boost Circuit Charging Board-Power Supply 1A Input

Dual Micro USB 3.7v to 5V 2A Mobile power bank charging module DIY 18650 Lithium-Ion Battery with Indicator LED. This is the mobile power module Accessories, 18650 Circuit board shell. Meet the individual needs of your DIY, but you must understand basic electronic assembly.

Features:

1. 4-level Indicator LED lamp display power, not working state intelligent automatic shutdown;
2. The built-in lithium-Ion battery protection IC, over-current, overpressure, under-voltage protection;
3. Dual USB output ports.
4. Input requirements: 5V constant voltage power supply can do charge input power, the most matching charger for 5V 1A above
5. Requirements for rechargeable batteries:
6. Compatible Batteries: 18650 batteries, cell phone batteries, flat-panel batteries, MP3 batteries, etc. 

Package Includes:

1 x Dual Micro USB 3.7v to 5V 2A Power Bank DIY 18650 Li-Ion Charger with Indicator Led

Note: All the cells that are connected to the power bank module should be in a series, please don't connect the cells in parallel as this will damage the power back module and cause a heating issue in it and eventually the power bank module will stop working.