Dual USB 5V 1A 2.1A Mobile Power Bank 18650 Battery Charger

Detailed information about the product：

Output voltage and current stable, will not harm user devices.
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.
Intelligent output device after charging full, automatically stop charging, to prevent mobile phones overcharge.
Motherboard comes with protection function: Charging overcharge protection, over-discharge protection, overcurrent protection.
Mini USB input: 5V 1A
USB Output: 5V 2.1A / 5V 1A(Dual USB interface)
Charging display: intelligent digital display
Batteries Type: lithium-ion batteries (18650)
Material:Metal
Colour:Black
Product Size: 57mm x 28mm
Screen size: 27mm x 17mm
Installation instructions:
The circuit board is connected to the battery negative B-, B + is the positive, do not connecting reversed, connecting reversed will burn the board, the battery is connected in parallel welding, assembling battery.
Note that the insulation between the battery and the circuit board, battery lead not to touch the circuit board, so as not to cause a short circuit.
Package Included:1 x Mobile Power Bank 18650 Battery Charger PCB
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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