Porsche Battery Part Number: How to Find the Correct Replacement

If you own a Porsche and need a new battery, knowing the exact part number is essential. Using the wrong battery can cause starting issues, electrical problems, or even damage to your car's sensitive electronics. This guide explains how to locate your Porsche battery part number, what the numbers mean, and how to choose the right replacement—whether you go OEM or aftermarket.

Why the Porsche Battery Part Number Matters

Porsche vehicles, especially modern ones, have sophisticated electrical systems. The battery isn't just a power source; it also supports start-stop technology, regenerative braking, and multiple control units. Using a battery with the wrong specifications (capacity, cold cranking amps, dimensions, or terminal layout) can lead to performance issues or trigger warning lights. The OEM part number ensures the battery meets Porsche's exact requirements.

Where to Find Your Porsche Battery Part Number

1. On the Battery Itself

Most original Porsche batteries have a sticker with the part number. Look for a 9-character code starting with "000" or "999" (e.g., 000 915 105 AS). Common locations:

• Top of the battery (under a protective cover)
• Front or side of the battery case
• Beneath a plastic cover in the trunk or under the hood

Note: Some vehicles may have a non-Porsche branded battery if previously replaced. In that case, the OEM part number is still helpful for cross-referencing.

2. Owner's Manual

Your Porsche owner's manual often lists recommended battery specifications and part numbers in the technical data section. Look for "Battery" or "Vehicle Specifications."

3. Online Parts Catalogs

Many Porsche parts websites allow you to enter your VIN (Vehicle Identification Number) to find the exact battery part number. This is the most reliable method because it accounts for your car's specific options (e.g., start-stop, power seats). You can search by VIN on official Porsche parts sites or reputable aftermarket parts retailers.

4. Dealership Parts Department

Calling a Porsche dealership with your VIN is a sure way to get the correct OEM part number. They can also tell you if there have been superseded parts (updated versions). Be prepared with your year, model, and engine type.

Decoding the Porsche Battery Part Number

Porsche part numbers follow a format: 000 915 105 XX. The first three digits indicate the category (000 for standard parts), the next three are the base number (915 for battery), and the last digits specify the variant.

Example:

• 000 915 105 AS: Common for many 911, Cayman, and Boxster models.
• 000 915 105 AU: Often used in Cayenne and Panamera with larger engines.
• 000 915 105 BE: For newer models with AGM (Absorbent Glass Mat) technology.

The suffix letters denote the specific electrical specifications and dimensions. Always use the exact suffix as the original.

Common Porsche Battery Part Numbers by Model

While using your VIN is best, here are typical part numbers for popular models (always verify):

Porsche 911 (997, 991, 992)

• 000 915 105 AS (AGM, 70Ah)
• 000 915 105 BE (AGM, 80Ah)

Porsche Cayenne (955, 957, 958, 9Y0)

• 000 915 105 AS (AGM, 70Ah)
• 000 915 105 BB (AGM, 92Ah)
• 000 915 105 CD (AGM, 105Ah)

Porsche Panamera (970, 971)

• 000 915 105 BB (AGM, 92Ah)
• 000 915 105 CD (AGM, 105Ah)

Porsche Macan (95B)

• 000 915 105 BE (AGM, 80Ah)
• 000 915 105 CL (AGM, 70Ah)

Porsche Boxster / Cayman (987, 981, 718)

• 000 915 105 AS (AGM, 70Ah)
• 000 915 105 BE (AGM, 80Ah)

OEM vs Aftermarket Batteries

OEM Porsche Batteries

• Pros: Exact fit, correct specs, verified compatibility.
• Cons: Higher cost, typically $200–$400.
• Part numbers are directly from Porsche.

Aftermarket Batteries (e.g., Interstate, Optima, Bosch)

• Pros: Often lower price, similar specs.
• Cons: Need to cross-reference dimensions, CCA, capacity, and terminal type. Some aftermarket batteries may require coding to the vehicle's battery management system.

Important: Many modern Porsches require battery registration/coding when replaced. An aftermarket battery may not be pre-coded, which can lead to improper charging and shortened lifespan. OEM batteries or premium aftermarket brands with coding capability are recommended.

How to Replace Your Porsche Battery

Replacing a Porsche battery varies by model, but general steps:

1. Safety first: Disconnect negative terminal first, then positive.
2. Remove battery: Unfasten hold-down clamp or bracket. Lift out battery.
3. Prepare new battery: Ensure it matches OEM specifications. If using AGM, confirm your car requires it (most modern Porsches do).
4. Install: Place battery, secure clamp, connect positive then negative terminals.
5. Code the battery: Use a diagnostic tool like Porsche PIWIS, Durametric, or a high-quality OBD scanner to register the new battery. This tells the car's alternator the battery type and state of charge.

Where to Buy a Porsche Battery

Purchase from:

• Porsche dealership (most expensive but guaranteed fit)
• Online Porsche parts retailers (like Suncoast Parts, Porsche Pelican Parts)
• High-end auto parts stores (if they carry AGM batteries with correct specs)

Avoid cheap no-name batteries; they often lack the proper cold cranking amps and may not fit securely.

Final Recommendation

For most Porsche owners, buying an OEM battery with the correct part number is the safest option. It eliminates guesswork, avoids coding issues, and ensures your car’s electrical system works as designed. If you prefer aftermarket, stick to reputable brands and verify that the replacement matches the OEM specifications exactly—especially CCA, capacity, and terminal layout. Always code the battery after replacement. If you’re unsure, contact a Porsche specialist or dealership with your VIN to get the right part number.

By taking the time to identify your Porsche battery part number correctly, you save yourself from future headaches and keep your Porsche running reliably.