Service & Install — Early in the Model S program we identified durability and fitment gaps in the OEM 12 VDC battery (C&D 33 Ah AGM). Our engineering team designed a direct-fit replacement that delivers longer service life and stronger performance while matching Tesla’s 180° reversed post orientation—which eliminates generic local auto-parts store options. We sell and ship this battery nationwide, maintaining a large inventory in a climate-controlled warehouse, and offer local installation that preserves vehicle settings. Each replacement includes a memory-safe swap, BMS wake/sleep validation, and a final 12 V health report. Core return and certified recycling supported.
Designed specifically for the Tesla Model S, this 12-volt battery is engineered for the unique duty cycle of an EV which include frequent micro-cycles, constant float/charge maintenance, and 24×7 vehicle systems support. Our design team analyzed Tesla charge behavior and accessory loads to build a pack optimized for long life under continuous standby service.
| Category | Detail |
| Application | Tesla Model S (12-V auxiliary systems) |
| Voltage / Chemistry | 12 V; AGM (VRLA) EV-tuned (EFB variant available by request) |
| Capacity (Ah) | Model-appropriate rating for S platform (deep-cycle biased) |
| Terminals | Reverse terminal orientation; correct post height for OE clamps |
| Case / Size | Direct-fit case for Model S tray; OE hold-down compatible |
| Warranty | 12-month limited (commercial use may vary) |
Installation available – For vehicles brought to our Gruber Motors Phoenix Service Center.
Fits Tesla Model S variants requiring a reverse-terminal 12-V battery. If you’re unsure about year/trim compatibility, contact us with the last 6 of your VIN and we’ll confirm the correct unit.
