it has a QuiQ 1000w charger on board, need to read up a bit more of the manual but i think it needs to see 50v before starting
ill measure the 12s voltage tomorrow but im thinking of slowly charging with a 12v charger, then a 30v charger and then one of my 48v ebike chargers to get it up to 50v if it even will
need to get a hydrometer and maybe some thermoil but it has a desulfator
i dont know, if the car was green id try some pickling salt