5V 2.1A Power Bank Charger Module for Lithium Battery

Features & Specifications:
– Output: DC5V/2A max, USB 2.0 Interface
– Input: DC5V/1A, Micro USB interface
– Battery voltage: 3.7-4.2 lithium battery
– Size: 7.1×1.6cm
– Button to show batter capacity on 4 LEDs.

Notes:
– The battery must be in parallel rather than in series.
– Test voltage before installation.
– One bad battery will affect the whole group battery.
– Recognize the positive and negative, if you put them in the wrong position, mainboard IC will definitely be destroyed.
– To avoid damaging the board, exposed part of the wiring must be wrapped well

Connections:
B- Negative Battery Lead
B+ Positive Battery Lead

Package Includes:
1 x 5V 2.1A Power Bank Charger Module