This circuit board has charging function and battery discharge protection function. It can charge and discharge at the same time.
Module features and parameters:
The input end has a TYPE C USB socket
You can directly use a mobile phone charger to charge the lithium battery,
And the input voltage wiring solder joints are still retained, which can be very convenient for DIY
Input voltage: 5V
Charging cut-off voltage: 4.2V ±1%
Maximum charging current: 1000mA
Battery over-discharge protection voltage: 2.5V
Battery over-current protection current: 3A
Board size: 2.6*1.7CM
How to use:
Note: When the battery is connected for the first time, there may be no voltage output between OUT+ and OUT-. At this time, connect 5V voltage to charge and activate the protection circuit. If the battery is short-circuited from B+ B- and then connected, it also needs to be charged to activate the protection circuit. When using a mobile phone charger for input, pay attention to the charger to be able to output 1A or more, otherwise it may not charge normally.
The TYPE C USB socket and the +- pad next to it are the power input end, connected to 5V voltage. B+ connects to the positive of the lithium battery, and B- connects to the negative of the lithium battery. OUT+ and OUT- connect to the load, such as the positive and negative of the mobile booster board or other loads.
Connect the battery to B+ B-, insert the mobile phone charger into the USB socket, the red light is on when it is charging, and the blue light is on when it is fully charged.