12V battery change itself? Because I just had it from it. Yes, it works itself – it’s nothing else than any other car too. Don’t be stupid to sell, because of e-car and special 12V battery. There is a stink normal leadic acid 12V battery with 50Ah and 430A/EN installed inside. Simply buy a battery with the same values and dimensions A/EN can be even better – there are with 450A/EN- for under 80€ and even cheaper! If someone changes their battery himself he/she/div. should already know how I take no liability for damage to the car and the human being.