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12V battery life


New Member
Jan 11, 2020
I got the notification that I need to replace my 12V battery. Tesla service have me booked in 7 days from now. How long do you have between getting the first warning indicator and the battery dying? One day? 100 miles?


May 26, 2013
United States
First time it happened, I waited ~4 weeks before replacing with no issues other than the warning. At that point the 12V was about 5 years old.

Second time I got the warning that 12V battery was about 4 years old and I ended up doing a hard reset and the warning went away. It’s been about 5 months and the issue hasn’t come back yet so I think the warning is fairly conservative.
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