Tesla 12V battery replacement cost

This is the small battery that runs the locks, screens and computers. It is not the main drive pack, and replacing it costs a fraction as much.

Cost by model and year

ModelBatteryCostWhat it coversSource
Model S 2012–May 202112V lead-acid (shop.teslarati.com (archived))$165Unverified: Tesla part only (quoted, 2016 Model S), plus $51 mobile install
“I got the warning last week that my 2016 MS 75D needs a new battery (first one still.) I was quoted $165 for the battery + $51 for mobile install.”
teslamotorsclub.com
Model S 2012–May 202112V lead-acid (shop.teslarati.com (archived))$489–$538aftermarket Ohmmu 12V lithium (sale to regular price)
“Tesla Model S Lithium 12V Battery (Ultra Lightweight, 4X Life) 25 reviews Sale price $489.00 Regular price $538.00”
shop.teslarati.com (archived)
Model S June 2021–present15.5V lithium-ion low-voltage battery (shop.teslarati.com (archived))—No published price
Model X 2016–202112V lead-acid (shop.teslarati.com (archived))$165Unverified: Tesla part only (owner invoice)
“The battery in the MX was a 12V, ATLASBX,B19 AT $165 according to my invoice.”
teslamotorsclub.com
Model X 2016–202112V lead-acid (shop.teslarati.com (archived))$499–$549aftermarket Ohmmu 12V lithium (sale to regular price)
“Tesla Model X Lithium 12V Battery (Ultra Lightweight, 4X Life) 13 reviews Sale price $499.00 Regular price $549.00”
shop.teslarati.com (archived)
Model X 2022–present15.5V lithium-ion low-voltage battery (shop.teslarati.com (archived))—No published price
Model 3 2017–202112V lead-acid (tesla.com (archived))$85.00Unverified: Tesla part only (OE Atlas lead-acid, excluding installation)
“You can purchase the replacement Tesla OE Atlas 12V lead-acid battery from Tesla (contact the Tesla Service Center via the Tesla app.) The price for the battery, excluding installation, is ~$85 US plus tax.”
teslamotorsclub.com
Model 3 2017–202112V lead-acid (tesla.com (archived))$280Unverified: Tesla mobile service replacement, parts+labor (owner report)
“It was about $280 including tax and everything. The battery itself was listed on the invoice at $160 and roughly $100 for labor.”
teslamotorsclub.com
Model 3 2017–202112V lead-acid (tesla.com (archived))$465–$499aftermarket Ohmmu 12V lithium
“12V Lithium Battery for Tesla Model 3 Sale $465.50 Regular price $479.00”
evannex.com (archived)
Model 3 2022–presentlithium-ion low-voltage battery (15.5V system) (tesla.com (archived))—No published price
Model Y 2020–early 202212V lead-acid (shop.teslarati.com (archived))$465–$479aftermarket Ohmmu 12V lithium
“12V Lithium Battery for Tesla Model Y Sale $465.50 Regular price $479.00”
evannex.com (archived)
Model Y 2020–early 202212V lead-acid (shop.teslarati.com (archived))$489–$519aftermarket Ohmmu 12V lithium (Teslarati shop)
“Tesla Model Y Lithium 12V Battery (Ultra Lightweight, 4X Life) 3 reviews Sale price $489.00 USD Regular price $519.00 USD”
shop.teslarati.com (archived)
Model Y Spring 2022–present15.5V lithium-ion low-voltage battery (shop.teslarati.com (archived))—No published price

Shop replacement 12V batteries

ProductFitsWhySource
Ohmmu 12V lithium for Model 3Model 3 2017–early 2022A lighter lithium drop-in for the original lead-acid battery, but it does not fit the newer 15.5V system.shop.teslarati.com (archived)Amazon
Ohmmu 12V lithium for Model YModel Y 2020–early 2022Replaces the lead-acid battery in early Model Y cars with a lighter lithium unit.shop.teslarati.com (archived)Amazon
Ohmmu 12V lithium for Model SModel S 2012–May 2021A lithium replacement for pre-refresh Model S cars that still use a lead-acid 12V battery.shop.teslarati.com (archived)Amazon
Ohmmu 12V lithium for Model XModel X 2016–2021A lithium replacement for pre-2022 Model X cars that still use a lead-acid 12V battery.shop.teslarati.com (archived)Amazon

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Common questions

What happens if the low-voltage battery dies?

The car cannot charge its main battery until the low-voltage system is jump-started, even if you are plugged in. Once the screen powers on you can plug in and charge. Source: tesla.com (archived)

Does the warranty cover the 12V / low-voltage battery?

Tesla's manual says damage to the low-voltage battery from running out of range is not covered. Source: tesla.com (archived)

Can I replace it myself?

Yes for lead-acid cars: Tesla publishes a DIY procedure for the Model 3 and says to use the same type of battery. The North American part is the AtlasBX / Hankook 85B24LS 12V 45Ah. Source: tesla.com (archived)

Which battery does my car have?

Model 3 cars built in Fremont before about December 2021 (Shanghai before about October 2021) have lead-acid; later cars have lithium-ion. Source: tesla.com (archived)

What are the signs it is failing?

The usual sign is a low-voltage warning on the screen telling you to replace the 12V battery. A car that will not unlock or wake up is another. Source: roadsumo.com

How long does it last?

Lead-acid 12V batteries in Teslas are commonly replaced every few years; one guide suggests every two to three years. Source: roadsumo.com

Main battery pack

Figures are as published by the cited sources; check with Tesla Service before you decide. eBay and Amazon links are affiliate links; we may earn a commission.