Hi, I’m building my first s500 drone. I bought this battery Turnigy 2200mAh 3S 20C. Everything worked perfect, the RPI and NAVIO2 turned on correctly. However, now they do not power on (if I connect it via battery). I do not know what happened, the charger looks like this:
I think a cell does not work. Can this be the reason why NAVIO2 does not turn on when I connect it to the battery? To make it clear, NAVIO2 works if I connect it via USB.
hard to tell without knowing if your measurement method also makes a slightly undervolted cell “not appear”
but if your power module does not power navio at all anymore (8 volt should be sufficient) - your battery (actually cell nr 3) might be severely damaged (and is “open circuited”; actually never experienced that before with my lipos - even with extremely and visually damaged lipos);
don’t charge it without a close eye for heating and swelling and I’d suggest investing in a new battery for flying…
better also store it in a fireproof place…
if it’s a new battery and you didn’t mechanically tortured it or totally discharged it I’d contact the seller…
however navio2 should be fine