The input end is equipped with a MICRO USB socket, which can directly use the mobile phone charger as input to charge the lithium battery.
And still retains the input voltage wiring solder joints, which can be very convenient for DIY
Input voltage: 5V
Charge cut-off voltage: 4.2V ±1%
Large charging current: 1000mA
Battery over-discharge protection voltage: 2.5V
Battery overcurrent protection current: 3A
Board size: 2.6*1.7CM
Color: As shown in the figure
Package Includes: 1PC

Instructions:
Note: When the battery is connected for the first time, there may be no voltage output between OUT+ and OUT-. At this time, the protection circuit can be activated by connecting the 5V voltage and charging it. If the battery is short-circuited from B+ B- and then connected, it also needs to be charged. Power off to activate the protection circuit. When using a mobile phone charger as input, note that the charger should be able to output 1A or more, otherwise it may not be able to charge normally

The TYPE C USB socket and the + - pads next to it are the power input terminals, which are connected to 5V voltage. B+ is connected to the positive side of the lithium battery, and B- is connected to the negative side of the lithium battery. OUT+ and OUT- are connected 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 charging, and the blue light is full.