2017 Model S No Longer Charges - At Service Center Parking Lot for third day now with 0 miles and no charge - Battery damage?

[TonikQL]

I am getting messages in the app saying to charge the car or battery damage may occur. It can no longer charge and the service center visit isn't for another 5 days. Battery is at 0 miles and basically completely dead. Is this really going to kill the battery?

 

[XxCyberHackerxX]

As long as sentry mode is turned off as well as cabin overheat protection you should be ok. The battery has a secret buffer

 

[ucmndd]

As long as sentry mode is turned off as well as cabin overheat protection you should be ok.

Neither of these are active at all under 20% SoC.

 

[XxCyberHackerxX]

Neither of these are active at all under 20% SoC.

Yep you’re right. Forgot about that!

 

[TonikQL]

Thanks guys. Didn't know about the secret buffer!

 

[Dannietjoh]

Maybe unhook the 12v battery. I think it won't be conditioned anymore when the hv soc is very low, phantom drain will completely drain the 12v battery at which point you can’t get into the car or even open the frunk anymore to charge it, only via the emergency release behind the nosecone or both front wheel wells (facelift)

 

[TonikQL]

Update: it was the 12v battery. Relatively cheap fix (~$350).