Bought new SR+ in Sept 2021 with NMC battery. Almost exactly 2 years later with about 12k miles the error messages BMS_a066 and later BMS_a079 popped up. Scheduled service. Kept driving the car until about a week later when it wouldn't charge pass 20 percent. Waited until my service date arrived and dropped off the vehicle and picked up a loaner. Loaner had FSD so played around with that a few times - not ready for prime time. 3 weeks later got the car back. Everything seems back to normal. Have not charge it to 100% yet to determine the maximum range. Only charged to 70-80 percent so far. At 50% the SOC is about 132 miles so if that can be extrapolated to 100% it will back to original stated claim of about 260 miles on full charge when vehicle was new. With the original battery I didn't track the maximum range miles that closely but I think the max range at 100% was down to about 220-230 miles range before the BMS messages popped up. Again this is just from memory.
This is not LFP but NMC battery. When I picked up car 2 years ago Tesla was transitioning to LFP for the 3 SR+ but I decided to wait for the NMC battery instead. Not sure if that was the right call or not but it is what it is.
This is not LFP but NMC battery. When I picked up car 2 years ago Tesla was transitioning to LFP for the 3 SR+ but I decided to wait for the NMC battery instead. Not sure if that was the right call or not but it is what it is.
