134N3P Powerbank Circuit Lithium Battery Charging and Protection Module 5V 1A USB Output Micousb Lion 18650 Battery Battery T6845-c This circuit basically has 2 important functions.

Charges the battery connected to the module via the microusb.

In addition, the device raises the 3.7V voltage from the battery to 5Va, allowing the devices outside the Usb A socket to use it.

It has many protection features such as short circuit protection, high voltage protection, etc.

It can flow 1A current from the output.

It can charge the battery with 1A.

In this case, you can use it as a powerbank circuit.

Specifications: Input Voting: 3.7V to 5.5V

Output Voltage:

Charge current: 1A

Charging indicator led ( Red intermittent charging resumed, Continuous red charging finished )

Can charge 3.7V batteries.

( Charging voltage 4.2V )

Output Current: 1A

Yield: 85%

High-voltage protection

Short-Circuit Protection

Overload protector

Intelligent temperature protection

Overvoltage protection

Battery Over Discharge Protection

Charging support that can charge fully depleted batteries

Dimensions: 23mm x 18mm x 10mm

Weight: 3gr

Package Content 1 Piece 134N3P Powerbank Circuit