Product details

Dual Micro USB 3.7v to 5V 2A Mobile Power Bank DIY 18650 Lithium Battery Charger Module With 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. Power has patterns overcharge, over-discharge, short circuit protection, no need to worry about charging time.smart Output. When the equipment is fully charged, it will stop charging automatically to prevent overheating.

THe Charging Process is When charging 0-25% one light is on, the other lightis off; 25% -50%, the second light is flashing, the first light is constantly on; 50% -75%, the third light is flashing, the two front lights are constantly on; 75% — 100%; the fourth light flashes, the front three lights are continuously on. And four lamps are on charge up to 100%.

The following points should be noted when installing/using:

Batteries to parallel, the voltage in 3.2-4.2V can work between, 18650 flat and polymer battery can be.
The battery is must connected properly to the motherboard B +(Positive) B-( negative) installed against the unnecessary burning motherboard.
New and old batteries, model brand inconsistent batteries cannot be mixed.

Specifications and Features:

4-level LED lamp display power, not working state intelligent automatic shutdown;
The built-in lithium battery protection IC, over-current, under voltage protection;
Dual USB output ports.
Dimensions: 68 x 34 x 9 mm (LxWxH)
Input port: MicroUSB
Input requirements: 5V constant voltage power supply can do charge input power, the most matching charger for 5v1a above
Output port: USB
Output parameters: 5V1A/5V2A
Compatible Batteries: 18650 batteries, cell phone batteries, flat-panel batteries, MP3 batteries, etc. 3.7v-4.2V polymer Lithium battery

Package Included: