Tesla Model 3 Lithium 12V Battery (Ultra Lightweight, 4X Life)

$439 $499

It's time to upgrade your Tesla Model 3 12V battery with a replacement, ultra-lightweight, and performance 12V lithium battery! Now even lighter!

Weighing in at only 8.5 lbs versus Model 3's super-heavy 29 lb lead-acid 12V battery, Ohmmu's 12V lithium battery is the battery that Tesla should have shipped from the factory!

4 years full-replacement warrantyProprietary 12V Lithium cell and BMS technology that is a drop-in replacement to your existing battery (no firmware changes needed)
Battery Management System prevents damage to the battery in extreme situations and also balances the battery cells to maintain the pack for longer service life!


  • Weight: 8.5 lbs
  • Increased reliability, up to 4X lifecycle
  • Increased power (no voltage sag, better 12v performance)
  • Less material waste (less batteries being used and less material in each battery)
  • Increased efficiency (Ohmmu 12v charges and discharges at a higher efficiency than Lead Acid/OEM)

Also available for Model S, Model Y and Model X

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We are able to offer FREE SHIPPING on most orders for the continental United States by stocking products in warehouses throughout the country. If your order contains multiple products, it's possible to receive separate shipments. 

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At Teslarati, we want to make every interaction with us as effortless as possible, and that goes for our return policy.

Return Policy

  • All products must be in new condition and returned in the original packaging.
  • Returns must not have been installed, damaged, or used in any way.
  • All products must be returned within 14 days of the date on the original invoice.
  • Buyer is responsible for all return shipping costs.

All returned items will be thoroughly inspected prior to issuing a refund. All returns are subject to a 20% restocking fee. 

Teslarati cannot accept freight costs of any returned merchandise.

Customer Reviews

Based on 8 reviews
Jared Wood
Easy to install, working great

The battery went right in and works great. Ask me if I still like it 12 years from now.

alaa abo seraj

Tesla Model 3 Lithium 12V Battery (Ultra Lightweight, 4X Life)

Chris Mullert
Really clever battery replacement option

After 2 years my original Tesla 12v lead-acid battery died. This new lithium battery is a really clever replacement/upgrade option that should last more than twice as long and perform much better. This battery is more expensive than replacing 1 lead-acid battery at Tesla, but not 2 lead-acid batteries so for me it's a no-brainer upgrade. It was also very easy to install after watching the videos.

S Cho

Great product and advertised, just like the YouTube video. Easy install and solved the problem. Thanks again!

Too soon to tell

The five stars is only to agree on the weight difference of the battery.

I can only attest to the weight of your battery, and it is amazing; As far as its longevity only time will tell.

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