Electrified Series Lithium 12V Battery Upgrade for Tesla Model 3 & Model Y

Stop replacing your Tesla’s 12V battery every few years. The Electrified Series Lithium 12V Battery is a direct-fit upgrade designed to replace the factory lead-acid battery found in Tesla Model 3 (2017–2022.3) and Model Y (2020–2022.3) vehicles. Engineered specifically for EV applications, this maintenance-free lithium battery is lighter, smarter, more efficient, and built to last significantly longer than a conventional sealed lead-acid battery.  With greater usable capacity and improved voltage stability, it delivers dependable power to your Tesla’s electronics and accessories while reducing the likelihood of unexpected low-voltage battery failures. An integrated smart Bluetooth Battery Management System (BMS) lets you monitor battery performance, while self-heating technology helps protect the lithium cells and maintain performance in cold conditions.

Compatibility:

• Fits Tesla Model 3 2017–2022 and Tesla Model Y 2020–2022

• Replaces OEM Batteries — B24LS, 85B24LS, 1129182-00-A, 1129182-00-B

  Group Size B19 (BCI) battery compatible with the Tesla Model Y Years 2020–2022.3 (March 2022) and Tesla Model 3 Years 2017–2022.3 (March 2022)

  April 2022 and later models are NOT compatible (i.e. 15.5V low voltage battery system)

Key Benefits:

• Direct-fit replacement for the factory 12V lead-acid battery
• Significantly longer service life than traditional lead-acid batteries
• Lightweight lithium construction
• Higher usable capacity and excellent voltage stability
• Smart Bluetooth BMS for battery monitoring
• Integrated self-heating technology
• Maintenance-free design
• Engineered specifically for EV electrical systems

Specifications:

Dimensions:

• • Length — 195mm / 7.7in
  • Width — 122mm / 4.8in
  • Height — 205+20mm posts / 8.1+.80in
    

Battery Terminals — SAE, Positive Top Back Left

Weight — 10 lbs

4 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.

Upgrade your Tesla once—and leave outdated lead-acid battery technology behind.

Monitor Your Battery from Your Phone

Connect to the battery’s Bluetooth-enabled Battery Management System using the Ohmmu Energy app. Monitor state of charge, battery health, total and individual cell voltage, current input and output, temperature, and other important battery data.

Compatible smartphone and Bluetooth connection required.