12 volt battery(ies) management

[Aka-none]

So the car has 1-2 12v batteries but how are they maintained and how can we see their status before they die and leave me stranded?

 

[bcjenkins]

So the car has 1-2 12v batteries but how are they maintained and how can we see their status before they die and leave me stranded?

My LEAF is the same. I know the 12V is dead when I receive a fault and cannot start the car.

A third party BMS is probably the only way to manage this.

 

[EVCar]

So the car has 1-2 12v batteries but how are they maintained and how can we see their status before they die and leave me stranded?

This was a very active discussion back in 2022, here as well as other EV fora. Seems like not a frequent event as previously feared. There was even talk about a gadget that would allow you to read the current voltage. The access is also not very user friendly.