Datasheet

The battery number resistors settings on the aliexpress page were wrong. With a too big resistor it did six flashes on all LEDs.

By resistors, can set number of cells to between 2 and 6S. 6S voltage is too high for regulator used on common aliexpress boards.

Does not balance battery packs.

Also can config max current.

Has I2C, but it is on the same pins as the LEDs, so need to choose.

Can add NTC for battery. 10k, B=3380 Connect from pin 37 to ground. If not placed, use fixed 10k.

Stops charging if outside 0C to 45C (wider limits for discharge).

BAT_MODE pin 46: Open / float LiPo, short LiFePo.

RVSET = 7.5K for 4.15V charge cutoff.

Battery Capacity Set to allow meter LEDs to work properly.

• 3S, 5P.
• Cells: 3.7V, 2200mAh (marked 8.14Wh).