What 12V Battery Fits a 2021 Tesla Model Y?
12V battery part numbers catalogued for the 2021 Tesla Model Y (EV electric, 261 hp), the engine variants that change them, and how to replace it.
The 2021 Tesla Model Y with the EV electric, 261 hp engine takes 12V batteries such as BOSCH 0 092 S40 210, EXIDE EB454 and BSG BSG 99-997-003 (TecDoc catalogue). TecDoc lists 24 batteries from 19 brands for this engine, ROMBAT listing the most (3). The 2021 Model Y was built with 16 engine variants (); these part numbers are catalogued for the EV electric, and other engines can take a different battery.
Last updated: · Source: TecDoc catalogue
2021 Tesla Model Y 12V battery: key facts
| Catalogued engine | EV electric, 261 hp |
|---|---|
| Part numbers | 0 092 S40 210 (BOSCH); EB454 (EXIDE); BSG 99-997-003 (BSG); S54517 (ERA); GR045D (GLOBAL); MF54523 (Hankook) |
| TecDoc listings | 24 batteries, 19 brands |
| Engine variants (2021) | 16, |
| Fit is decided by | The group size, the terminal layout, the cold-cranking amps (CCA) and whether start-stop needs an AGM or EFB battery |
| NHTSA recalls: electrical system | 7 of 23 for this model |
| DIY | Easy DIY (some cars need battery registration) |
Sources: TecDoc catalogue (part numbers, engines), NHTSA recalls.
12V Battery: what it does & when to replace it
The 12V battery supplies the current to start the engine and powers electronics when the engine is off. Most last 3–5 years. Warning signs include slow cranking, dim headlights at idle, dashboard warnings, or needing a jump-start. Group size, terminal layout, and cold-cranking-amp (CCA) rating must match the vehicle. Replacement is an easy DIY job — disconnect negative first, then positive — but on many modern cars the battery must be registered/coded to the charging system, which may require a shop tool. Hybrids and EVs also have a separate 12V battery in addition to the high-voltage pack.
DIY difficulty: Easy DIY (some cars need battery registration). Always confirm the correct part for your exact build by VIN before buying.
Which engine does your 2021 Tesla Model Y have?
The 2021 Tesla Model Y was sold with 16 engine variants, and the correct 12V battery can differ between them. This is the single thing a year/make/model dropdown cannot tell you.
| Engine | Fuel | Cylinders | Years |
|---|---|---|---|
| EV 261 hp | Electric | — | 2019–now |
| EV All-wheel Drive 351 hp | Electric | — | 2019–now |
| EV Performance All-wheel Drive 462 hp | Electric | — | 2019–now |
| EV All-wheel Drive 431 hp | Electric | — | 2021–now |
| EV Perfomance All-wheel Drive 461 hp | Electric | — | 2021–now |
| EV 299 hp | Electric | — | 2021–now |
| EV All-wheel Drive 450 hp | Electric | — | 2021–now |
| EV Perfomance All-wheel Drive 485 hp | Electric | — | 2021–now |
| EV 347 hp | Electric | — | 2021–now |
| Long Range All-wheel Drive 514 hp | Electric | — | 2021–now |
| EV Performance All-wheel Drive 534 hp | Electric | — | 2021–now |
| EV 275 hp | Electric | — | 2021–now |
| EV 325 hp | Electric | — | 2021–now |
| EV 264 hp | Electric | — | 2021–now |
| EV All-wheel Drive 373 hp | Electric | — | 2021–now |
| EV Performance All-wheel Drive 436 hp | Electric | — | 2021–now |
Engine variants catalogued for this model (TecDoc), filtered to those built around 2021. We hold catalogued part numbers for the base engine only — decode your VIN and we resolve your exact engine, then the exact part. Full dimensions and specifications for this vehicle are on the 2021 Tesla Model Y overview.
How to replace the 12V battery on a 2021 Tesla Model Y
- 1Turn off the engine. Disconnect the NEGATIVE (−) terminal first, then the POSITIVE (+).
- 2Remove the battery hold-down clamp and lift the old battery out (they are heavy — keep it upright).
- 3Clean the tray and terminals, then set the new battery in with the same terminal orientation.
- 4Reconnect POSITIVE (+) first, then NEGATIVE (−), and refit the hold-down clamp snugly.
- 5On many modern cars, register/code the new battery to the charging system with a diagnostic tool.
⚠ Match group size and CCA. Many cars require battery registration or they under-charge the new battery.
These are general steps for the electrical category. Exact fastener locations, torque values, and the correct part number depend on your 2021 Tesla Model Y’s build — confirm by VIN before you start.
Compatible parts for your 2021 Tesla Model Y
Real 12V battery options catalogued for this 2021 Tesla Model Y (TecDoc), shown for the base engine. Each links to live marketplace listings for that exact brand and part number.
| Brand | Part number | Note | Shop |
|---|---|---|---|
| BOSCH | 0 092 S40 210⇆ cross-ref |
Starter Battery | Find this part → |
| EXIDE | EB454⇆ cross-ref |
Starter Battery | Find this part → |
| BSG | BSG 99-997-003⇆ cross-ref |
Starter Battery | Find this part → |
| ERA | S54517⇆ cross-ref |
Starter Battery | Find this part → |
| GLOBAL | GR045D⇆ cross-ref |
Starter Battery | Find this part → |
| Hankook | MF54523⇆ cross-ref |
Starter Battery | Find this part → |
Compatible options shown for the base engine — exact fit can vary by engine and trim; confirm with your VIN before buying. Part data: TecDoc catalogue.
Shop 12V battery for your 2021 Tesla Model Y
Browse 12V battery listings from major marketplaces. Confirm fitment by VIN first — use VinSnap above to get the exact part number for your build before purchasing.
Find the exact 12V battery by VIN
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Decode my VIN →Frequently asked questions
What 12V battery fits a 2021 Tesla Model Y?
The 2021 Tesla Model Y with the EV electric, 261 hp engine takes 12V batteries such as BOSCH 0 092 S40 210, EXIDE EB454 and BSG BSG 99-997-003 (TecDoc catalogue). The 2021 Model Y was built with 16 engine variants (); these part numbers are catalogued for the EV electric, and other engines can take a different battery.
Which brands make 12V batteries for the 2021 Tesla Model Y?
For the EV electric engine, TecDoc lists 24 batteries from 19 brands: ROMBAT, MAGNETI MARELLI, NPS, VARTA, BOSCH, BSG, CENTRA, DETA and 11 more.
How often should the 12V battery on a 2021 Tesla Model Y be replaced?
The 12V battery supplies the current to start the engine and powers electronics when the engine is off. Most last 3–5 years. VinSnap has no manufacturer-specific interval on file for the 2021 Tesla Model Y; the owner’s manual has the official schedule.
Can I replace the 12V battery on a 2021 Tesla Model Y myself?
Easy DIY (some cars need battery registration). Allow about 20–30 minutes. Tools: socket/wrench set, battery terminal brush, gloves + eye protection. Match group size and CCA. Many cars require battery registration or they under-charge the new battery.
Are there recalls on the 2021 Tesla Model Y’s electrical system?
Yes. NHTSA lists 7 recalls for the 2021 Tesla Model Y filed under the electrical system: 24V051000 (2024-01-30), electrical system / instrument cluster/panel; 23V838000 (2023-12-12), electrical system / adas / autonomous/self driving / software; 22V235000 (2022-04-12), electrical system / software; and 4 more. Recall repairs are free at a franchised Tesla dealer.