I received a HTCC-AB02-S (branded “Seamuing”) and a LiPo battery (LP402535, 3.7V) today. Powering with USB wasn’t a problem, but powering with only the battery did not power up the board.
My initial thought was that the battery might be empty, and as I have read there is a charge controller integrated, I attached it to USB while the battery was connected (I dont recall in which order I connected the two).
Immediately some smoke developed and a smell of burnt electronics was around.
I checked the manual and there I came across the sentence:
“Except when USB or 5V Pin is connected separately, lithium battery can be connected to charge it. In other cases, only a single power supply can be connected.”
I do not get it, what does it mean?
Did I receive a faulty board or did I do something wrong?
Best, Robert
