Stemedu 10PCS 5V 1A Micro USB 18650 Lithium Battery Charging Board TP4056 Charger Module with Protection (Pack of 10)

5V 1A 18650 Lithium Battery Charging Board TP4056 Interface: MICRO USB Voltage: 5V Charging cut-off voltage: 4.2V ± 1% Maximum charging current: 1000mA Battery over discharge protection voltage: 2.5V Battery overcurrent protection current: 3A Board size: 2.8 * 1.7cm Attention: 1.

When the battery is first connected, there may be no voltage output between OUT+ and OUT-.

At this time, you can connect 5V voltage to activate the protection circuit.

2.

If the battery is disconnected from B+B- of the charging board, it also needs to be charged to activate.

3.

When using a phone charger to charge, the charger must be able to output 1A or above, otherwise it may not charge properly.

4.

Connect the battery to "B+" and insert the phone charger into the USB female, the red light indicates charging, and the green light indicates fully charged.