Custom Power bank module mobile power boost DIY 18650 lithium battery digital display dual USB output charging board motherboard

Features:

This is the mobile power module accessories, 18650 circuit board housing.

To meet the individual needs of your DIY, but you must understand basic electronic assembly.

The motherboard comes with protection functions: overcharge protection, overdischarge protection, overcurrent protection.

When the smart output device is fully charged, it automatically stops charging to prevent the phone from overcharging.

Stable output voltage and current, will not harm the user equipment.

Product Specifications:

Micro USB input: 5V 1A

USB output: 5V 2.1A / 5V 1A (dual USB interface)

Charging display: intelligent digital display

Battery Type: Liquid lithium-ion battery (18650)

Product size: 57mm dot ˉ x28mm

Screen size: 27 mm x17 mm

Installation instructions:

The circuit board is connected to the battery negative B-, B + is positive, not connected reverse, the connection torsion will burn the board, the battery parallel connection welding, assembly battery. Please note that the insulation between the battery and the circuit board, the battery lead should not touch the circuit board, so as not to cause short circuit.

The package includes:

1 mobile power 18650 battery charger circuit board