U1R - Sodium 12V Battery for Tesla Model S (2012–2021.5)

Climate-Proof Chemistry — With an operational temperature of -40°F to 172°F, sodium-ion technology outperforms lithium in extreme temperatures, making it ideal for year-round outdoor use.

Better Performance — Higher nominal voltage with zero voltage sag means crisper LED lighting, cleaner audio output, and consistently responsive electronics throughout your vehicle.

Eco-Friendly — Longer service life means fewer batteries consumed over time and less material waste.

Sustainable Materials — Sodium uses abundant, affordable materials with a lower environmental footprint than lithium or lead acid.

App-Compatible Monitoring — Pair with the optional Ancel BM200 Battery Monitor and Ancel BM200 app for real-time state of charge and diagnostics. Available on iOS & Android.

Dimensions

• Length — 195mm / 7.7in
• Width — 132mm / 5.2in
• Heighth — 155mm / 6.1in
  

Battery Terminals — Threaded Insert (UNF 10-32) w/ SAE adapters, Positive Top Back Left

Weight — 10 lbs

12V Battery

Warranty Card

SAE Adapters — UNF 10-32 threaded insert with SAE adapters with top back left positive terminal.

Battery Spacer — H-Shaped Plastic Spacer can be placed under the battery to raise height if needed for your tray.

3 Year Warranty — 100% Full Replacement Coverage on performance failure of any sort. Requires inspection and is determined solely by Ohmmu Energy. See the full warranty details HERE.

Magnuson-Moss Warranty Act — Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) more details HERE.

Replaces OEM Batteries — DCS-33 UNCR, DCS-33RIT, 1083774-00-A

Group Size U1R (BCI) battery compatible with the Tesla Model S years 2012–2021.5 (May 2021).

June 2021 and later models are NOT compatible (i.e. 15.5V low voltage battery system).

If you're unsure your vehicle is compatible, contact us!

Model S 12V Battery Installation