The main battery is for eco system if you drive the car and you stop your seatbelt on the car will shut off if the main battery is new but if the has less than 50 percent its not going to function normally
@TheMcs338 ай бұрын
Were the othere battery at for eco...please show how to test
@Godisablebraketechnicianasecer8 ай бұрын
You will be getting message from your dashboard if your car battery is down