12V Battery dead in all electric GV70

[cp1963]

Hi, Battery12V dead- entered the car "manually" but can not see where to jump start the car- any ideas? Car had 40% on main battery and is 1 year old.

Help!

 

[krikorr]

Hi, Battery12V dead- entered the car "manually" but can not see where to jump start the car- any ideas? Car had 40% on main battery and is 1 year old.

Help!

There are detailed instructions on jumping the 12v battery in the EV owners manual pg 8-4

 

[kgr11]

There are detailed instructions on jumping the 12v battery in the EV owners manual pg 8-4

I have owned this car for 1 week and having read about all the 12V failures I decided to pre-emptively top up the 12V... I have a schumacher external charger that displays charge level for the 12V.... holy cow does this car suck 12V juice... so far i've had to charge the 12V twice already and it took several hours. the car overall is supposed to keep the 12V happy but from what i can see the various gizmos really suck the life out of the 12V, no surprise that there are so many 12V failures, whatever algorithms they implemented are just not enough to keep the 12V happy it seems... also it is not a very large unit...

 

[krikorr]

I have owned this car for 1 week and having read about all the 12V failures I decided to pre-emptively top up the 12V... I have a schumacher external charger that displays charge level for the 12V.... holy cow does this car suck 12V juice... so far i've had to charge the 12V twice already and it took several hours. the car overall is supposed to keep the 12V happy but from what i can see the various gizmos really suck the life out of the 12V, no surprise that there are so many 12V failures, whatever algorithms they implemented are just not enough to keep the 12V happy it seems... also it is not a very large unit...

There must be something wrong with either the 12v battery or the electrical system.
I haven't seen more than a few 12v battery problems comments for GV70 EV in the past two years.
Every now and then when I walk through my garage, I see the yellow charging bulb lit up on the dashboard
indicating the 12v battery is being charged by the main battery. Do you occasionally see that yellow light on?

 

[kgr11]

There must be something wrong with either the 12v battery or the electrical system.
I haven't seen more than a few 12v battery problems comments for GV70 EV in the past two years.
Every now and then when I walk through my garage, I see the yellow charging bulb lit up on the dashboard
indicating the 12v battery is being charged by the main battery. Do you occasionally see that yellow light on?

Hi I think for the 2026 the yellow light is gone. When I said "12V failures" I meant dead 12V battery... In fact it appears that many of the experiences of bricked cars is nothing more than the 12V going dead. I also have a voltmeter running off the outlet inside the car and it can indicate if the 12V is being drained or being charged (14+ means being charged, 12+ means draining)... ran a few errands today covered about 60-70 miles and the 12V which was full when i started was down to about 65% when i got home and below 12V.... I know there is no failure because the moment i put it in park the voltmeter shoots up to 14+... i.e. it only charges the 12V when stationary... hmmmm anyway will keep experimenting... Perhaps I'm going overboard here but nice to really understand what goes on behind the scenes....

 

[kgr11]

I might add that lead acid, unlike lithium ion likes to be at 100% for long life... I've got an old sports car where the original lead acid lasted 25 years because it was constantly kept on a trickle charger.