1. The figure above is TP4The finished lithium battery charging board composed of 056. Its use is very simple, as long as the input end is connected to the 5V voltage output of the mobile phone charger, the BAT+ end and BAT- end on the circuit board are connected to the positive and negative terminals of the lithium battery. The charge termination voltage of this charging board is 2V.
2, when the charging current drops to 1/10 of the set value after reaching the final floating charging voltage, TP4056 will automatically terminate the charging cycle. When the input voltage (AC adapter or USB power supply) is removed, the TP4056 automatically enters a low current state, reducing the battery leakage current to below 2uA.
4. The first pin in the figure is connected to GND, not NTC. LED1 is lit when charging, and LED2 is lit when charging is complete. 3 Charging connection mode The charging solution has a ready-made module that can be used, and the volume is very small, suitable for secret installation.
5, connect the power