This circuit board features both charging and battery discharge protection, allowing for simultaneous charging and discharging.
Module Features and Parameters:
● The input port features a Type C female USB connector.
● You can directly use a mobile phone charger to charge a lithium battery.
● The input voltage solder pads are still included, making it very convenient for DIY devices.
● Input Voltage: 5V
● Charge Cut-off Voltage: 4.2V ±1%
● Maximum Charge Current: 1000mA
● Battery Over-Discharge Protection Voltage: 2.5V
● Battery Over-Current Protection Current: 3A
● Board Dimensions: 2.6 x 1.7cm
Instructions:
Note:
● When connecting a battery for the first time, there may be no voltage between OUT+ and OUT-. In this case, charging with 5V will activate the protection circuit. Short-circuiting the battery from B+ to B- and then reconnecting it also requires charging to activate the protection circuit. When using a mobile phone charger as the input, ensure that the charger is capable of outputting 1A or more, otherwise charging may not work properly.
● The Type C female USB connector and the + and - pads next to it are the power input terminals and accept 5V. Connect B+ to the positive terminal of the lithium battery, and B- to the negative terminal. Connect OUT+ and OUT- to a load, such as a mobile boost board or other load.
● Connect the battery to B+ and B-, and plug the mobile phone charger into the USB female connector. A red light indicates charging, and a blue light indicates full charge.
