Porsche Battery Repair Service
Porsche 12V Lithium Battery Repair Service
Check Your OEM Part Number
Common OEM numbers for this repair service
- 9Y0915105
- 9Y0915105J
- 9Y0915105K
- 9Y0915105L
Don't see your OEM number? Send us a photo of your battery label or VIN — we'll confirm compatibility. Contact us
Professional mail-in repair for Porsche 12V LiFePO4 lithium auxiliary batteries used in Cayenne, Panamera, Taycan and 911 models. Send your OEM part number or VIN and we’ll confirm compatibility before shipping.
Repair service only — ship your original battery to us for diagnosis, repair, testing, and return.
- Nationwide USA mail-in repair
- 2–3 business day turnaround
- OEM diagnostics
- Tested before return
Questions before ordering?
Contact UsService check
Is this the right repair service?
This is a Porsche 12V LiFePO4 lithium battery repair service — not a high-voltage traction battery repair. Confirm compatibility by OEM part number or VIN before shipping.
This service covers
- Porsche 12V LiFePO4 lithium battery repair
- OEM 12V lithium batteries from the 9Y0, 9J1 and 9Y0915107 families
- Starting, charging, BMS and communication faults
This service does not cover
- High-voltage hybrid or EV traction battery packs
- Conventional lead-acid or AGM batteries
- Vehicle-side wiring, charging system or control module faults
Service details
Compatibility
Porsche 12V Compatible Models
This service covers Porsche 12V LiFePO4 lithium auxiliary batteries used in Cayenne, Panamera, Taycan and 911 models.
Compatible Models
- Porsche Cayenne (9Y0) — 12V / 60Ah LiFePO4 auxiliary battery modules
- Porsche Panamera (9J1) — OEM lithium starter and auxiliary battery systems
- Porsche Taycan (J1) — 12V lithium auxiliary battery systems
- Porsche 911 (992) — OEM 12V lithium battery modules
- Cayenne S, GTS, Turbo and Coupe variants
Common symptoms & compatibility check
Your BMW battery may be repairable if you are seeing issues like these.
- Battery warning messages
- Vehicle will not start
- Charging and communication faults
- Voltage imbalance
- Repeated battery replacement
- OEM / VIN compatibility questions
Send us your OEM part number, VIN, or a photo of the battery label and we'll confirm compatibility before shipping.
Process
How Our Porsche 12V Repair Works
Ship your original battery
Securely send your original Porsche 12V lithium battery to our repair center.
Diagnose, repair, and test
Full OEM diagnostics, module-level repair, and testing before it leaves us.
Return your original battery
Your repaired battery ships back to you nationwide.
Most repairs are completed within 2–3 business days after delivery.
Contact
Confirm Battery Compatibility
Send us your OEM part number, VIN, or battery label photo and we’ll confirm compatibility before shipping.
Support
Shipping, Repair Process & FAQ
How do I ship my battery?
Ship your original Porsche 12V lithium battery to our repair center. Once received, it is inspected, repaired if eligible, and returned to you.
How long does the repair take?
Most repairs are completed within 2–3 business days after delivery.
How do I confirm my battery is compatible?
Confirm compatibility by OEM part number or VIN before shipping. Compare your part number against the supported OEM numbers shown in the hero above.
What if my battery cannot be repaired?
If a battery cannot be restored due to severe internal damage or corrosion, a refund is issued minus return shipping.
Are batteries tested after repair?
Yes. Each repaired module is tested before being returned to ensure proper functionality.
Is this the same battery used by other brands?
Some vehicles from other manufacturers use a battery with a similar OEM number. Always match the exact part number printed on your battery label before ordering.
Next Steps
Need Something Else?
Sell a battery or read the full BMW lithium battery repair guide before ordering.
Sell Your Battery
Have a Li-ion battery you no longer need? Send us the OEM number and photos for an offer.
Get an OfferBMW Repair Guide
Read our BMW lithium battery repair guide, including symptoms, OEM numbers, and repair options.
Read Guide