Parameters:
Input voltage: 5V
Charge cut-off voltage: 4.2V±1%
Maximum charging current: 1000mA
Battery over-discharge protection voltage: 2.5V
Battery overcurrent protection current: 3A
Board size: 28X17mm/1.10X0.67in

Instructions:
1. 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. 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 as input, note that the charger must be able to output 1A or more, otherwise it may not be able to charge normally
2. The USB female socket and the + - pads next to it are the power input terminals, which are connected to 5V voltage. B+ is connected to the positive electrode of the lithium battery, and B- is connected to the negative electrode of the lithium battery. OUT+ and OUT- are connected to the load, such as the positive and negative poles of the mobile booster board or other loads.

Package includes:
10 x Lithium Battery Charging Board(Type-C USB interface)