Description:

Dual USB 5V 1A 2.1A Mobile Power Bank 18650 Battery Charger PCB Power Module LED Charging Board for Phone DIY.
Motherboard comes with protection function: Charging overcharge protection, over-discharge protection, overcurrent protection.
Intelligent output device after charging full, automatically stop charging, to prevent mobile phones overcharge.
This is the mobile power module Accessories, 18650 Circuit board shell.Output voltage and current stable, will not harm user devices.
Meet the individual needs of your DIY, but you must understand basic electronic assembly.

Specification:

Micro USB input: 5V 1A
USB Output: 5V 2.1A / 5V 1A(Dual USB interface)
Charging display: intelligent digital display
Batteries Type: liquid lithium-ion batteries (18650)
Size: 70x22x5mm/2.76x0.87x0.20inch

Package Includes:

1 Piece Power Bank USB Module Board