Tesla OEM 12V Lead-Acid Battery 1129182-00-B for Tesla Model 3/Y

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Tesla OEM 12V Lead-Acid Battery 1129182-00-B for Tesla Model 3/Y

Tesla OEM 12V Lead-Acid Battery 1129182-00-B for Tesla Model 3/Y

Regular price $523.00 AUD
Sale price $523.00 AUD Regular price
Unit price
Product description
Shipping & Return

Why Replace Your 12V Lead-Acid Battery?

A weak 12V battery can cause warning alerts, failed vehicle wake-up, locking issues, or charging problems.

Stable 12V Power

Supports vehicle controls, door locks, lights, displays, and communication modules.

Vehicle-Specific Fit

12V 45Ah specification for compatible Tesla Model 3 and Model Y vehicles.

Reliable Wake-Up

Powers essential control modules and helps activate the high-voltage system.

Note: Verify the original battery type, model, and terminal layout before ordering.

WILL THIS FIT?

Fits vehicles originally equipped with a 12V lead-acid low-voltage battery.

1

Check the Screen. Go to Controls → Software → Additional Vehicle Information → Low Voltage Battery Type. It must show Lead-Acid. If it shows Lithium-ion, this product will not fit.

2

Check the Battery Label. Confirm 12V lead-acid, Reference OE #1129182-00-B, and the correct model. Match the terminal layout and vent connection before ordering.

3

Beware of 2021 Transition Batches. Production changed during late 2021. Always verify the low-voltage battery type and OE part number before ordering. Send a photo of the battery label and your VIN to support@tesery.com if you are unsure.

✅ Vehicle Compatibility

Direct fit for vehicles with factory 12V lead-acid system:

  • Tesla Model 3: 2017–2021 (lead-acid equipped)
  • Tesla Model Y: 2020–2021 (lead-acid equipped)
  • Reference OE # 1129182-00-B

⚠️ 2021 Transition Vehicles

Production changed during late 2021. Always verify the low-voltage battery type and OE part number before ordering.

❌ Does Not Fit

  • Vehicles with Lithium-Ion low-voltage battery
  • Tesla Model 3 Highland
  • Tesla Model Y Juniper
  • Tesla Model S or Model X

Product Specifications

Product Name12V Lead-Acid Battery 1129182-00-B for Tesla Model 3/Y
OEM Part Number1129182-00-B
Voltage & Capacity12V Lead-Acid · 45Ah
Target VehiclesTesla Model 3 2017–2021 · Tesla Model Y 2020–2021 (Verify fitment using OE Part Number 1129182-00-B.)
What's in the Box1 × 12V LV battery (no bracket extras unless shown in photos)

KEY FEATURES

OEM number 1129182-00-B

Direct replacement for the 12V lead-acid battery Tesla fitted as part number 1129182-00-B. Match the stamp on your current battery before installing.

Keeps the low-voltage system alive

Powers computers, locks, windows, and safety modules while the high-voltage pack is asleep. A weak LV battery is a common reason the car will not wake or shows a service alert.

Not a 16V lithium swap

12V lead-acid cars use a different connector and charging strategy. Always verify your vehicle has a lead-acid battery before ordering.

Install with the service procedure

Isolate low-voltage power as Tesla specifies, then fit the pack in the frunk location. Professional install is strongly recommended.


Frequently Asked Questions

Q: How do I know if my Tesla needs a new 12V auxiliary battery?

▼ Details
Tesla will typically display a low-voltage battery or service alert on your center touchscreen. Sluggish door handles, unresponsive key cards, or display delays can also indicate battery degradation.

Q: Will this battery fit 2021 Model 3 or Model Y vehicles?

▼ Details
Production changed during late 2021. Tesla switched from lead-acid to lithium-ion low-voltage batteries. Always verify the low-voltage battery type and OE part number before ordering. Check your vehicle screen: Controls → Software → Additional Vehicle Information → Low Voltage Battery Type. It must show "Lead-Acid".

Q: Does this battery require programming or software calibration after installation?

▼ Details
A like-for-like replacement using the same 12V lead-acid battery type generally does not require battery registration. If a different battery model is installed, vehicle configuration may be required.

Q: What happens if the 12V battery dies completely before I replace it?

▼ Details
If the 12V battery is completely depleted, the electronic door latches and frunk latch will not operate. You will need to jump-power the front trunk release wires behind the tow eye cover to access and replace the battery.

Important Notice:

If you encounter any issues after installation, please contact us before removing the product.

Providing vehicle details (model/year/VIN) along with photos or short videos will help us resolve your issue much faster.

Products that are removed or altered before troubleshooting may not be eligible for return or replacement.

TESERY Return Policy

We are committed to providing you with a worry-free and enjoyable shopping experience. Should you need to return a product, we offer a clear and convenient return service.

1.Order Cancellation

  • You can request to cancel your order before it has been shipped.

  • If your order has already been shipped, we will do our best to intercept it, but success is not guaranteed.

  • Please submit your cancellation request via email or through our online customer service.

2. 30-Day Return Policy

You have the right to request a return within 30 days from the date you receive your item. To ensure a smooth process, please make sure to contact us and initiate the return within this 30-day period.

3. Eligibility for Returns

To be eligible for a refund, returned products must meet the following conditions:

  • The item must be in the same condition as when you received it—unworn, unused, with tags, and in its original packaging.

  • Proof of purchase is required.

4. Return Reasons & Associated Fees

We handle two types of returns:

  • Quality Issues or Damaged Products:

    • If the item you received is defective, damaged, or if you received the wrong item, please contact us immediately. We will issue a full refund or provide a replacement and will cover all associated costs.

  • Non-Quality-Related Returns (e.g., Personal Preference):

    • For returns initiated due to personal preferences (e.g., change of mind, dissatisfaction with the color or style), a 15% restocking fee will be applied, and the customer is responsible for covering the return shipping costs.

5. The Return Process

To start a return, please follow these steps:

  1. Contact Us:

  2. Receive Instructions:

    • Once your return request is approved, we will send you detailed return instructions, including the shipping address and packing guidelines.

  3. Ship the Item Back:

    • Please ship the item back according to the instructions provided. Please note that items sent back to us without first requesting a return will not be accepted.

6. Non-Returnable Items

Due to their nature, certain types of items are not eligible for return:

  • Customized Products: For example, steering wheels and wheels that are explicitly marked as custom products cannot be returned for non-quality-related issues.

  • Specific Items: This includes gift cards, hazardous materials, or flammable liquids/gases.

If you have any questions about the eligibility of a specific item, please contact us before making a purchase.

7. Refunds & Exchanges

  • Refunds:

    • Once we receive and inspect your returned item, we will notify you and inform you if the refund has been approved. Approved refunds will be processed automatically to your original payment method within 1-5 business days. The final credit posting time depends on your bank or credit card company.

  • Exchanges:

    • For the fastest way to ensure you get what you want, we recommend that you return the item you have, and once the return is accepted, make a separate purchase for the new item.

8. After-Sales Support Requirements

To ensure a fair and efficient resolution process, customers are required to provide necessary information when requesting after-sales support, including but not limited to:

- Vehicle details (model, year, VIN)
- Clear description of the issue
- Supporting photos and/or short videos demonstrating the problem

Please note:

Failure to provide the required information may prevent us from accurately diagnosing the issue and may result in delays or inability to process returns, refunds, or replacements.

For products that have been installed, modified, or removed without prior communication, TESERY reserves the right to decline return requests if the product condition cannot be verified.

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