5v 2.1A Power Bank Module

Description

5v 2.1A Power Bank Module 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.

5v 2.1A Power Bank Module Specifications

Charging indication: IN letters will appear on the charging display

Output load indication: After connecting the load, long press the LED light button, the output starts, the display will show the OUT letter and the relative output voltage and current 5V1A or 5V2.1A

Protection function: The protection circuit of the boosted lithium battery has been integrated to prevent overdischarge, overcharge and overload.

Note:

The B and B- of the boosted battery must not be reversed, they will burn.

The module can be connected to one lithium battery or multiple lithium batteries in parallel

But the capacity should not exceed 200,000 mAh, and the voltage is 3.-4.2V. Battery positive electrode connected to B ,  battery negative electrode connected to B-

Size: length 58MM*width 27MM*thickness 15MM