Lithium Battery Charger Module IP2312 3A with USB

Master Chip: IP2312 Input voltage: 4.5 ~ 5.5V Charging cut-off voltage: 4.2V/4.35V (the output voltage is available in two versions) Charging current: 3A (the current can be changed by adjusting the resistance) Indicator light: yes, red: working indicator. Blue: full charge indicator. Note: This product does not have a battery capacity indicator function, and there is no battery protection function, in our store has a lithium battery battery capacity indicator board for sale. Conversion efficiency: 3A 93%, 2A 94%, 1A 95% (data is for reference only) IP2312 uses full CC/CV charging mode. When the battery voltage is less than 3V, it enters the trickle charging mode and charges the battery with a charging current of 100mA. When the battery voltage is higher than 3V, enter the DC charging mode to charge the battery with a constant charging current. When the battery voltage is close to 4.2V and the charging current is less than 300mA, it enters into constant voltage charging mode. After entering the constant voltage mode, the charging is stopped after every 4 minutes, and the battery voltage is detected to be higher than 4.15V: if it is higher than 4.15V, the charging is stopped; Otherwise, charging continues, then detection is performed after 4 minutes. When the battery is fully charged, if it detects that the battery voltage is lower than 4.1V, it will turn on to charge the battery. Instructions for adjusting charging current: 3A default, remove 2A resistor, replace with 135k 1A. resistor