Description:
1. When you connect the battery for the first time, there may be no voltage between the output+and the output-,then you can activate the protection circuit by charging the battery B+B- with 5V voltage, and then draw a short circuit, which also requires charging. Note that when using the mobile phone charger for input, the charger can output more than 1A or not charge.
2. The+micro USB female connector and the next pad are used for power input, connected to the positive pole of 5V.B+, connected to the lithium battery, and connected to the negative pole of the lithium battery. Out+ and out- The positive and negative electrodes are connected to a load, such as a movable booster plate or other loads.
3. Connect the battery to B+B-, insert the USB female into the mobile phone charger, charge with red light and fill with green light.
4. When charging, the load on the positive and negative electrodes must be removed from the output terminal, and no mistake can be made. Please explain it according to the specifications, otherwise it will be directly damaged.
5. With micro USB female input, the mobile phone can be directly input as a rechargeable lithium battery, and it also protects the input voltage connection pad, which is convenient for DIY.

Specifications:
Input voltage: 5V
Charging cut-off voltage: 4.2v±1%
Maximum charging current: 1000mA
Overdischarge protection voltage of battery: 2.5V
Battery overcurrent protection current: 3A
Board size: 2.6*1.7CM

Package Include:
10x Module Boards

(Please choose according to the option pictures)