How to Replace Tesla Low Voltage Lead Acid Battery

Tesla "Low Voltage 12V Lead Acid Battery" Repair Guide, Cost, Buy, Repair, How to replace, Find affordable Workshop

1. Introduction

1.1. Type of Low Voltage Batteries in Tesla Cars

There are 2 types:

  1. Lead-Acid 12V
  2. Lithium-Ion 16V

You should replace your low voltage Lead Acid 12V battery with the same type of battery. If you need help to choose correct battery for your car. Please free to contact us.

Car in North America are equipped with AtlasBX / Hankook 85B24LS 12V 45Ah. You can also buy a new lead-acid low voltage battery from local service center if its compatible with your car. Please free to contact us to check if battery is compatible with your car.    

1.2 How to Check which type of battery is equipped in your Tesla car?

Software > Vehicle Additional Information > Low Voltage Battery Type

Lead-Acid

Tesla Lead-Acid Low Voltage Battery

Lithium-Ion

Tesla Lithium-Ion Low Voltage Battery

1.3 Which Tesla Car are equipped with Low Voltage Lead-Acid Battery?

Car produced in

  • Gigafactory Shanghai before approximately October 2021
  • Fremont Factory before approximately December 2021

1.4 Which Tesla Car are equipped with Low Voltage Lithium-Ion Battery?

  • Car produced above dates are quipped with a Lithium-Ion Low Voltage Battery.

1.5 Where is it located battery inside the car?

Under the front frunk.

1.6 How to check type of Battery

When you open front frunk. You should be able to identify type of Battery.

2. Buy Low Voltage Battery

Battery Part Number

If you would like buy 12V Lead Acid Low Voltage Battery. Please have a look in our catalog or contact us.

2.1 Part Number

Model Year Part Number Part Name
3  June 2017 - Aug 2023

1129182-00-B

1119120-00-D (car built before October 2020)

ASSEMBLY - 12V BATTERY AND VENT PLUG

12V, BATTERY BRACKET ASSEMBLY

Y
S Apr 2016 - Jan 2021 1480221-00-A LV BATTERY
X

3. Repair Low Voltage Battery

In some cases, its possible to repair Low Voltage Battery. Please contact us for more details. There are some workshops who can repair it.

3.1 When could be possible to repair?

3.1 Cost to repair

3.3 How to check

Video how to check Link

4. Online Support

In case, if you need any support. Please contact us.

5. Appointment to Replace Tesla Low Voltage Battery in best affordable Workshop

Book an Appointment

6 How to Replace Tesla Low Voltage Battery?

6.1 How to Disconnect & Connect

Guide to disconnect & connect. Link

6.2 How to Replace 12V Low Voltage Battery

Guide how to Replace

 

6.3 How to reset Battery

If your car has software FW 2023.44 or later version.

Service Mode > Low Voltage > Power Distribution > Change Battery Type

Select the type of battery that was installed and run

7. Guide for Tesla Lithium Ion 16V Low Voltage Battery

In case, if you car is equipped with 16V Battery. Please have a look in another guide Link

FAQ

1. How to check whether current battery is bad?

 

Source Tesla DIY, Weber University

 

 

 

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Disclaimer: Tesla, Inc. was not involved in the creation of this document. Tesla did not provide us any info. Tesla did not edit, review or authorize us. We gather this information from Tesla official website and other resources.

Note: It is your responsibility to double check and confirm that the procedures/info mentioned in this blog are applicable to your specific car before performing them. Please contact us or our workshop partner to make sure/confirm. We will be happy to help you.