M5StickC + 18650C (HAT external battery) BAT pin

[liamharrison3]

Does anyone know where the BAT pin on the HAT connector goes? I see what I think is the internal battery voltage on it. So when I use the 18650C accessory the 18650 is connected in parallel with the internal battery? Is that correct?

Thanks!

[m5stack]

@liamharrison3 yes. the 18650 is connected in parallel with the M5StickC internal battery.

[liemph]

@m5stack This means that when the Stick is plug to the 18650C accessory, the 18650C accessory will not charge the internal battery?