Porsche Lithium Battery Repair (12V LiFePO4 Systems)
Is your Porsche showing battery warnings, start-stop issues, or electrical faults?
We specialize in Porsche 12V lithium-ion battery repair, focusing on LiFePO4 (Lithium Iron Phosphate) auxiliary battery systems used in Cayenne, Panamera, Taycan, and 911 models. Our service covers OEM 12V / 60Ah lithium battery modules, including part numbers such as 9J1915105, 9Y0915107, and 9Y0915989, across the 9Y0 and 9J1 platforms.
We restore your original battery and help you avoid costly replacement.
⚡ Send us your battery and get it repaired in 2–3 business days with return shipping. ⚡
- Ship your battery to us
- We diagnose & repair
- We ship it back
Common Porsche Battery Problems We Fix
- Battery warning messages
- Battery not charging
- Start-stop system not working
- Electrical faults
- Communication errors
- Voltage imbalance or BMS faults
Many of these Porsche battery issues can be repaired without full battery replacement.
⚠️ Important: This service covers Porsche 12V lithium (LiFePO4) auxiliary batteries — not high-voltage EV battery packs.
Supported Porsche Models for Repair
We repair the OEM 12V lithium (LiFePO4) battery systems used in:
Porsche 12V Lithium (LiFePO4)
- 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
- Other Porsche models using 12V OEM lithium (LiFePO4) battery systems
Confirm compatibility by OEM part number or VIN before shipping.
Porsche Lithium Battery Systems We Repair
Below is an overview of common Porsche lithium-ion (Li-ion) battery systems that are often repairable, depending on condition and system type.
| Battery Type | Voltage | Porsche System Type | Compatible Porsche Models |
|---|---|---|---|
| 12V lithium starter battery (LiFePO4) | ~13.2V | OEM 12V auxiliary / starter lithium battery | Cayenne (9Y0), Panamera (9J1), Taycan (J1) |
| 12V lithium battery with BMS faults | ~13.2V | OEM Li-ion + integrated protection module | Cayenne, Panamera, Taycan, 911 |
| OEM 60Ah lithium battery module | 12V / 13.2V | LiFePO4 60Ah system with fuse + protection circuit | Vehicles using 9Y0 / 9J1 battery family |
Compatibility depends on battery condition, configuration, and internal faults. Not all batteries require full replacement.
Many Porsche lithium battery modules used in modern vehicles are repairable — including units found in Cayenne, Panamera, Taycan, and 911 models.
Supported Porsche OEM Part Numbers
We commonly repair Porsche 12V lithium (LiFePO4) battery systems with the following OEM part numbers.
Common Porsche OEM part numbers
- 9Y0915105
- 9Y0915105J
- 9Y0915105K
- 9Y0915105L
- 9Y0915105M
- 9J1915105
View all Porsche OEM part numbers
- 9Y0915105N
- 9Y0915105Q
- 9Y0915105R
- 9Y0915105CY
- 9Y0915105GY
- 9Y0915105JY
- 9Y0915105LY
- 9Y0915105MY
- 9Y0915105NY
- 9Y0915105QY
- 9Y0915105RY
- 9Y0915105G
- 9J1915105K
- 9J1915105KY
- 9J1915105KYC
- 9Y0915107
- 9Y0915107H
- 9Y0915107K
- 9Y0915107JY
- 9Y0915107RY
- 9Y0915107RYC
- 9Y0915989
- 9Y0915989A
Alternative OEM number formats (spaced versions)
- 9J1 915 105
- 9J1 915 105 K
- 9J1 915 105 KY
- 9J1 915 105 KYC
- 9Y0 915 105
- 9Y0 915 105 J
- 9Y0 915 105 K
- 9Y0 915 105 L
- 9Y0 915 105 M
- 9Y0 915 105 N
- 9Y0 915 105 Q
- 9Y0 915 105 R
- 9Y0 915 105 G
- 9Y0 915 105 CY
- 9Y0 915 105 GY
- 9Y0 915 105 JY
- 9Y0 915 105 LY
- 9Y0 915 105 MY
- 9Y0 915 105 NY
- 9Y0 915 105 QY
- 9Y0 915 105 RY
- 9Y0 915 107
- 9Y0 915 107 H
- 9Y0 915 107 K
- 9Y0 915 107 JY
- 9Y0 915 107 RY
- 9Y0 915 107 RYC
- 9Y0 915 989
- 9Y0 915 989 A
Get Your Porsche Battery Repaired
Send your battery details and we’ll confirm repair eligibility and pricing.
Got a Li-ion battery to sell? Contact us — we’ll give you the best deal! Sell Your Battery →
Why Choose Our Porsche Battery Repair Service?
- OEM module repair and diagnostic
- Fast turnaround (2–3 business days)
- Save vs. full battery replacement
- Safe, nationwide shipping
If a battery cannot be restored due to severe internal damage or corrosion, a refund is issued minus return shipping.
Customer Feedback
Trusted by 500+ customers across the U.S.
Porsche 12V lithium battery fault fixed without replacement. Car starts normally again.
Sent my Cayenne battery module and received it back repaired within two days.
Panamera battery errors cleared. Saved a lot compared to buying new.
Frequently Asked Questions | Porsche Battery Repair
Can Porsche lithium batteries be repaired instead of replaced?
Yes, many Porsche lithium battery modules can be repaired, helping you avoid costly replacements.
How long does Porsche lithium battery repair take?
Most Porsche 12V lithium batteries are repaired within 2–3 business days after we receive the unit. Total turnaround depends on shipping time.
What Porsche models use 12V lithium batteries?
Many modern Porsche vehicles use OEM 12V lithium-ion starter batteries, including Cayenne (9Y0), Panamera (9J1), and Taycan (J1).
What battery types do you repair?
We repair OEM 12V 60Ah LiFePO4 battery modules with integrated protection circuits, fuse holders, and BMS systems.
Are Porsche 12V lithium batteries repairable?
Yes. Many issues related to BMS faults, voltage imbalance, or protection circuit errors can be restored.
Do you need to check compatibility before shipping?
Yes. Customers should confirm by part number, VIN, or battery label to ensure the unit matches supported systems. Or contact us and we’ll let you know.
What part numbers are supported?
We commonly service modules from the 9Y0 and 9J1 lithium battery family used in Cayenne, Panamera, 911 and Taycan.
What if my Porsche battery cannot be repaired?
If internal damage is too severe, we issue a refund minus return shipping costs.
Do I send my original battery?
Yes. This is a repair service. You ship your original Porsche lithium battery to us.
Are batteries tested after repair?
Each battery module is diagnosed, repaired, and tested before being shipped back.
Can I sell my Porsche lithium battery instead?
Yes. Even faulty modules may still have value. Contact us for evaluation.
Do you accept nationwide shipping?
Yes, we offer nationwide mail-in Porsche battery repair across the United States.
Ready to Fix Your Porsche Li-Ion Battery?
Looking for Porsche lithium battery repair near you?
We provide nationwide mail-in service across the U.S., including Florida, Texas, California, New York, Illinois, and more.
Send us your battery details and we’ll confirm repair eligibility before you ship.
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