Product details:
Name: 3A polymer ternary lithium battery fast charging board ;
(note not suitable for 3.2V lithium iron phosphate battery);
Model: ailavi-0503v1;
Main control chip: ip2312;
Input voltage: 4.5~ 5.5V;
Charging cut-off voltage. 4.2v/4. 35v (two versions of output voltage
are optional);

Charging current: 3A (the current can be changed by adjusting the
resistance);
Indicator light: Yes;

lp2312 adopts complete CC I CV charging mode:
When the battery voltage is lower than 3V, enter trickle charging mode
to charge the battery with a charging current of 100mA;
When the battery voltage is greater than 3V, enter the constant current
charging mode to charge the battery with the set constant current
charging current.

When the battery voltage is close to 4.2V and the charging current is
less than 300mA, enter the constant voltage charging mode. After
entering the constant voltage mode, stop charging every 4 minutes,
and check whether the battery voltage is higher than 4.15V: ifit is
higher than 4.1 5V, stop charging; otherwise, continue charging, and
then check after 4 minutes.

When the battery is full, if the battery voltage is detected to be lower
than 4.1V, it will be turned on to charge the battery again.

Package: 6PCS