Product Size: 57mm x 28mm
USB Output: 5V 2.1A / 5V 1A(Dual USB interface)
Micro USB input: 5V 1A
Batteries Type: liquid lithium-ion batteries (18650)
Charging display: intelligent digital display
Screen size: 27mm x 17mm
Features:
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.
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.
Output voltage and current stable, will not harm user devices.



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:
1x PCBA Motherboard(Case is not included)



Note:
Due to the hand measurement, there have size error about 1-5mm
Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same