Newer Teslas don’t have a 12V battery—they have a 16V lithium one. Same job (wake the car, run the computers), different battery, different procedure. We service the right one for your car.
Tesla switched the low-voltage battery from 12V lead-acid to 16V lithium-ion starting with the late-2021 Model S/X refresh, then Model 3/Y in 2022. The lithium unit lasts longer and weighs less—but it still fails, and it needs the correct replacement, not a generic 12V off the shelf. If your Tesla was built in the switchover years, don’t guess—we’ll check by VIN.
We test the 16V battery, confirm it’s the culprit (and not something deeper), and replace it with the correct lithium battery for your model and year. Then we verify the car wakes, charges, and clears errors properly before it leaves.
A dying low-voltage battery—12V or 16V—mimics serious problems: HV battery errors, charging faults, computers that won’t boot. A general shop can chase those ghosts for hours. We check the low-voltage battery first because we’ve seen this movie hundreds of times.
Backed by our 6-12 months labor warranty.
Model S and X built from late 2021, and Model 3 and Y from 2022, switched to a 16V lithium low-voltage battery. Older cars use 12V lead-acid. Not sure? Give us your VIN and we'll tell you in seconds.
Less often than lead-acid 12Vs, but yes—it can fail, and when it does the symptoms look the same: dead car, dark screens, strange errors. We test it properly instead of guessing.
It needs the correct lithium unit and proper procedure—it's not a drop-in lead-acid swap. We stock the right battery for your model and year.
Possibly—a failing low-voltage battery causes false HV errors regularly, 12V or 16V. That's why we test before we quote. A proper diagnostic saves you from a five-figure scare over a low-cost battery.