A week ago I got the low voltage alert on my 2018 LR RWD and I found a replacement (AGMi listed as a replacement) at OReiley's. I didn't go the mobile tech route because the earliest appointment was too far out and I need the car to drive 2 hours to the airport this week. It worked fine for a day, then I got the following allerts: BMS_a170 (acceleration and top speed reduced) and BMS_a027 (power limited - ok to drive).
I checked the voltage of the new battery and it was at 14.3V, which I thought was high and I was reading that maybe the AGM battery was causing the problems, so I got a non-AGM replacement today and installed it and I'm getting the same errors. I did the hard reboot multiple times and I checked the battery voltage and it was also at 14.3V.
Could this be the reason I'm getting the errors? What should the 12V battery voltage be reading? Is a new Tesla 12V battery initial voltage that high?
I have an service appointment scheduled for after I return, but it's 2 hours away and I'd love to resolve this without taking a whole day off and not sure if I can get a loaner.
I checked the voltage of the new battery and it was at 14.3V, which I thought was high and I was reading that maybe the AGM battery was causing the problems, so I got a non-AGM replacement today and installed it and I'm getting the same errors. I did the hard reboot multiple times and I checked the battery voltage and it was also at 14.3V.
Could this be the reason I'm getting the errors? What should the 12V battery voltage be reading? Is a new Tesla 12V battery initial voltage that high?
I have an service appointment scheduled for after I return, but it's 2 hours away and I'd love to resolve this without taking a whole day off and not sure if I can get a loaner.