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 commonly used part numbers such as 9J1915105, 9Y0915107, and 9Y0915989, across the 9Y0 and 9J1 platforms.

👉 View all Porsche OEM part numbers

We restore your original battery system and help you avoid costly replacement.

⚡ Send us your battery and get it repaired in 2 business days with return shipping.⚡

How Our Battery Repair Service Works

Ship your battery to us

We diagnose & repair

We ship it back

Start Your Battery Repair

Most repairs are completed within ~48 hours after delivery

Common 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

Most common Porsche lithium batteries we service:

  • 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

Compatible with OEM lithium battery modules and integrated vehicle electrical systems.

👉 Always confirm compatibility by part number or VIN

Get Repair Quote
Add images to create carousel

✅ Want to confirm if we can fix your Porsche BATTERY? Contact us!

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 OEM Li-ion + integrated protection module
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.
Most common Porsche 12V battery part numbers: 9Y0915105 • 9Y0915105J • 9Y0915105K • 9Y0915105L • 9Y0915105M • 9J1915105
9Y0915105N • 9Y0915105Q • 9Y0915105R • 9Y0915105CY • 9Y0915105GY • 9Y0915105JY • 9Y0915105LY • 9Y0915105MY • 9Y0915105NY • 9Y0915105QY • 9Y0915105RY • 9Y0915105G • 9J1915105K • 9J1915105KY • 9J1915105KYC • 9Y0915107 • 9Y0915107H • 9Y0915107K • 9Y0915107JY • 9Y0915107RY • 9Y0915107RYC • 9Y0915989 • 9Y0915989A
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
These Porsche OEM part numbers correspond to common 12V lithium (LiFePO4) auxiliary battery systems used in Cayenne, Panamera, Taycan, and 911 (992) models.
Additional variants may exist. Contact us with your part number or VIN for compatibility verification.

Get Your Porsche Battery Repaired

Send your battery details and we’ll confirm repair eligibility and pricing.

Describe the issue or enter the OEM part number / VIN if available.

Fast response — usually within a few hours.

Got a Li-ion battery to sell? Contact us — we’ll give you the best deal!
Sell Your Battery

Customer Feedback

Trusted by 500+ customers across the U.S.

★ ★ ★ ★ ★

Porsche 12V lithium battery fault fixed without replacement. Car starts normally again.

R.T., California

★ ★ ★ ★ ★

Sent my Cayenne battery module and received it back repaired within two days.

M.B., Texas

★ ★ ★ ★ ★

Panamera battery errors cleared. Saved a lot compared to buying new.

J.S., Florida

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.

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 48 hours 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, we will notice you.

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.

Get a Quote
Send us your battery details and we'll confirm repair eligibility before you ship.

Also Repairing Li-Ion Batteries for Other Brands

Explore other supported lithium battery repair services by vehicle brand.