1. Introduction
There are 2 types low voltage batteries which are equipped in Tesla cars.
- Lead-Acid (12V)
- Lithium-Ion (16V)
How to check which type of battery is equipped in your Tesla car?
Software > Vehicle Additional Information > Low Voltage Battery Type
You should replace your car car low voltage battery with the same type of battery. If you need help to choose correct battery for your car. Please free to contact us.
We also Repair and Sale low voltage battery for all Tesla cars. Please free to contact us
2. Buy new Low Voltage Battery
Battery Part Number
If you would like buy 16V Lithium Ion Low Voltage Battery. Please have a look in our catalog or contact us.
| Model | Part Number | Part Name |
| 3 | 1598486-00-F |
3. Repair existing 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
Accident Repair/Replace Tesla Low Voltage Battery?
Might need to repair/replace after accident. Please contact us, we will be happy to help you to let you know whether you need to repair/replace.
- How long was car standing after accident?
- Was it drained below 9V?
Car might not recognize low voltage battery, if car was standing long time. You might need to replace.
How to close MOSFET
There are 3 ways to close it. Please feel to contact us. We will be happy to help you.
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
VCFRONT_a182
- VCFRONT_a182_replace12VLVBattery
VCFRONT_a477
- VCFRONT_a477_LVBatteryUnrecoverable
VCFRONT_a478
- VCFRONT_a478_LVBMS_MOSFET_Open
VCFRONT_a495
- VCFRONT_a495_LVBatteryRecoveryBlcoked
VCFRONT_a496
- VCFRONT_a496_LVBatteryExitDriveWarning
VCFRONT_a402
- VCFRONT_a402_LVBatteryCannotSupportVehicle
- The vehicle controller has detected a condition where the low voltage (LV) battery is unable to support vehicle electrical systems.
6 How to remove and replace Tesla Low Voltage 16V Battery?
How to Disconnect & Connect
Guide to disconnect & connect. Link
How to Replace 16V Low Voltage Battery
If your car has software FW 2023.44 or later version. Touchscreen > Low Voltage > Power Distribution > Battery Icon > Learn New Battery and click Run to start the process.
If the battery is CATL_LI_ION. It need to reinstall the car software.
7. Guide for Tesla Lead Acid 12V Low Voltage Battery
In case, if you car is equipped with 12V Battery. Please have a look in another guide Link
FAQ
Is it possible to repair?
Yes, its possible to repair in some cases. You might not need to replace replace.
How much should be the voltage?
around 15.6V during normal operation
Where is it located battery inside the car?
Under the front frunk.
What is State of Charge Target?
Runs at targeted state of charge between 75-85%
What is operating Voltage Range?
15.5 - 15.8
What is Ah Capacity
6.9 Ah
How to check whether current battery is bad?
How to check which type of battery is equipped in your Tesla car?
Software > Vehicle Additional Information > Low Voltage Battery Type
How to check Lead-Acid (12V) in Tesla cars?
Software > Vehicle Additional Information > Low Voltage Battery Type > Lead-Acid
How to check Lithium-Ion (16V) in Tesla cars?
Software > Vehicle Additional Information > Low Voltage Battery Type > Lithium-Ion
Which Tesla cars are equipped with Low Voltage Lead-Acid Battery?
Car produced in
- Gigafactory Shanghai before approximately October 2021
- Fremont Factory before approximately December 2021
Which Tesla cars are equipped with Low Voltage Lithium-Ion Battery?
- Car produced above dates are quipped with a Lithium-Ion Low Voltage Battery.
How to Jump Start?
Please read more details in Owner's Manual or DIY.
Some more information
16V Battery has
- Battery Management System (Does cell balancing, 4 Cells)
- Self-Protection Mode (It shuts off input and output to protect from over und under-charge in certain circumstances)
- LIN Data Communication (communication line between LV Battery and VCFRONT)
16V Battery has 5 Terminals (Positive, Negative, Electronic Connector Position Assurance (ECPA) LIN Data)
Battery has circuit board and connector.
MOSFET
There is MOSFET Transistor on circuit board. MOSFET Transistor opens the circuit in some circumstance to protect the battery.
What could the readings/Voltage when MOSFET is open.
It could be zero. It might not read anything. It might show some readings, however it might not capable.
When MOSFET Transistor open?
It normally close.
It opens to protect battery from damage in some of following conditions
- State of charge is less than 10%
- It could happen when you drive when HV Battery charge get zero miles/km
- When HV Battery charge is zero
- If any cell from four cells voltage is less than 3.46V or more than 4.3 V
- If Battery pack voltage is less than 13.8V or more than 17.2V
- If discharge current is greater than 400A.
- When someone has used to jump start another car
Please feel to contact us to close it. We could help you remotely to close it.
Push-Fit Electrical Connector?
How to clear via Toolbox
Actions - LVBMS Reconnect LV Battery - Run
