I own many a few have pre set battery voltage others can be adjusted to whatever i want never had 1 fail nor batteries hooked 2.won my 1st as door prize in carpet nats in 2001 it was a Schultze
a lipo can be salvaged by charging lipo on Nixx mode until your charger can see it at a lipos voltage...be careful doing this.. so if esc can run a lipo down to 6 v then change the lvc setting or add a battery buzzer.id charge at no more than 1/4 amp..voltage will climb quickly
battery damaged...