Specifications
1. Up to 1A Programmable Linear Charging Current
2. For single 3.7V lithium battery, full 4.2V
3. Constant current/constant voltage charging with over-temperature protection
4. Soft start to limit surge current with battery reverse protection
5. Low power standby, prolong battery life
6. Dual output of charging status, no battery and fault status display
7. Can be activated at 0V, 2.9V slip current charging
8. Operating temperature -40~80℃
9. Input voltage range 4.2V~6.5V
Description：
TP4057 1A 3.7V Lithium Battery Charging & Discharging Board
TP4057 Charging & Discharging in One Board
Type-C USB C Li-ion Battery Charging Board
Constant current/constant voltage charging with over-temperature protection
Dual output of charging status, no battery and fault status display
Note:
1. The battery cannot be connected backwards, as it can easily damage the motherboard.
2. The battery terminal voltage should not exceed the product overshoot voltage.
3. Batteries cannot be connected in series, they can only be connected in parallel. The battery of parallel can be several, but not recommend too many.
Package included:
10 * TP4057 1A Lithium Battery Charging & Discharging Board with Protection