Porsche LiFePO4 Lithium Battery BMS Repair Service (2018+)
Porsche LiFePO4 Lithium Battery BMS Repair Service (2018+)
Porsche LiFePO4 Lithium Battery BMS Repair Service (2018+)
Has your Porsche LiFePO4 (Lithium Iron Phosphate) battery suddenly gone completely dead and read 0 volts at the battery terminals? In many cases, the battery itself is not defective. The internal Battery Management System (BMS) has entered protection mode after a deep discharge or low-voltage condition, preventing the battery from accepting a charge.
Instead of replacing the entire battery, we repair your original BMS control board so it can be reinstalled and the battery returned to service.
Common Symptoms
- Battery measures 0 volts at the terminals.
- BMS entered protection mode after a deep discharge.
- Battery warning or energy management fault.
- Battery appears completely dead despite previously functioning normally.
How It Works
This is a mail-in repair service for the Battery Management System (BMS) control board located inside the Porsche LiFePO4 (Lithium Iron Phosphate) battery.
You will:
- Remove the battery from the vehicle.
- Remove the BMS control board from inside the battery.
- Ship the control board to us.
- We repair your original BMS.
- We return your repaired BMS.
- Fully charge the battery to approximately 13.6 volts.
- Reinstall the repaired BMS control board into the fully charged battery.
- Reinstall the battery into the vehicle.
Removal instructions can be provided upon request.
Compatibility
This service is intended for Porsche LiFePO4 battery BMS control boards used in 2018 and newer Porsche vehicles.
Some Audi and Lamborghini vehicles use the same LG Chem LiFePO4 battery and BMS assembly. If you have an Audi or Lamborghini with the same battery or BMS part number, please contact us before purchasing so we can verify compatibility.
Why Choose Repair?
- Save thousands compared to replacing the complete battery.
- Keep your original battery and BMS.
- Fast turnaround—most repairs are completed within 1 business day of receipt.
- Professionally repaired and tested before return.
Important Information
- This listing is for a mail-in repair service only.
- You are not purchasing a replacement battery or complete battery assembly.
- You are sending us your original BMS control board for repair.
- The battery must be fully charged to approximately 13.6 volts before reinstalling the repaired BMS control board.
- Modules with severe physical damage, corrosion, or previous unsuccessful repair attempts may not be repairable.
- If you're unsure whether your battery is compatible, send us the battery or BMS part number before purchasing and we'll be happy to verify compatibility.
Thank you for considering VELECTRONIX. We look forward to helping you get your Porsche LiFePO4 battery back in service quickly and affordably.
Common Part Numbers
Common Part Numbers
9Y0-915-105
9Y0-915-105-0Y
9Y0-915-105-CY
9Y0-915-105-GY
9Y0-915-105-J
9Y0-915-105-JY
9Y0-915-105-K
9Y0-915-105-L
9Y0-915-105-LY
9Y0-915-105-M
9Y0-915-105-NY
9Y0-915-105-P
9Y0-915-105-Q
9Y0-915-105-R
General FAQ
See All
What is immo off or immobilizer delete, and will it work for my VW or Audi?
Immobilizer delete (immo off) bypasses the immobilizer in the engine control unit (ECU) of VW and Audi vehicles. It’s used when the vehicle starts but immediately shuts down due to a fault in the immobilizer system, often with fault codes P1570 or P0513. Immo off services will not work if the vehicle does not start at all; it must start and then be shut down due to the immobilizer.
What is module cloning, and do part numbers need to match?
Module cloning involves copying all the data from one module to another, allowing the replacement to function just like the original. While it's generally recommended to match part numbers for compatibility, the necessity can vary by module. Some require exact matches, while others are more flexible and allow cloning between different part numbers. Each product listing on our website specifies the part number requirements. If you're unsure, feel free to reach out for guidance.
Do you have to open the module cases?
We only open module cases when absolutely necessary. For services that don’t require opening, we won’t open the module. However, depending on how badly damaged your original ECU is, sometimes opening the module is the only way to retrieve data. Additionally, some services don’t have a plug-in method at all and require direct access to the board, including soldering or chip replacement. The need to open modules is not specific to us but is sometimes essential depending on the condition of the ECU.
What are the shipping procedures and turn around times?
After purchasing, you will receive an email with shipping instructions. You are responsible for shipping your modules to us, and we will cover the return shipping. You can use any shipping service that is convenient for you. We typically use UPS Ground (3-5 days) for return shipping, but in some cases, we may use USPS or FedEx. Once we receive your package (shipping times depend on how quickly you ship it and the service used), we typically ship it back the next business day. Some services may require a 2-day handling time, depending on the complexity.
For detailed shipping times to and from your location, check out our shipping speed map.
What is the warranty?
We offer a 90-day warranty on programming only. This covers the accuracy of the programming performed, but does not extend to the module hardware itself.
Porsche LiFePO4 Lithium Battery BMS Repair Service (2018+)
