When selecting a replacement battery for the Porsche Cayman II (981) produced between 2013 and 2016, it is essential to consider several technical factors to ensure the new battery matches the car’s requirements and supports its advanced systems. The Cayman II, especially in its 2.7 and S 3.4 engine variants, is equipped with a Start-Stop system, which places higher demands on the battery compared to vehicles without this feature. The Start-Stop function, designed to improve fuel efficiency and reduce emissions by automatically shutting down and restarting the engine at short stops, requires a robust and reliable power source. Therefore, choosing the right type of battery is not just a matter of size or brand, but also of ensuring optimal performance and longevity for the car’s sophisticated electronics.
For this generation of Porsche Cayman, the recommended battery technology is AGM, which stands for Absorbent Glass Mat. AGM batteries are specifically engineered to handle the frequent charge and discharge cycles associated with Start-Stop systems. Unlike conventional flooded batteries, AGM units feature a design where the electrolyte is absorbed into a fiberglass mat, making them spill-proof and resistant to vibration—two qualities especially valuable in high-performance sports cars like the Cayman II. Additionally, AGM batteries provide superior cold cranking power, which is critical for reliable starts in all weather conditions.
In terms of technical specifications, the table indicates that both the 2.7-liter and the S 3.4-liter petrol engines require a battery with a minimum and maximum capacity ranging from 80 to 82 ampere-hours (Ah) and a cold cranking current of 800 amps. This narrow range suggests that the battery must closely match these values to ensure proper fitment and performance. Using a battery with lower capacity or cranking power might lead to difficulties with the Start-Stop system or even potential failures in starting the engine, especially during colder months or after extended periods of inactivity.
As for suitable models, there are several examples of batteries that meet these requirements and are commonly recommended for this specific Porsche model. Among the matching choices, you will find the Bosch S5A 11, Exide EK800 and EK820, Halfords AGM 115, Lucas LF115, and Varta F21. These are referenced as examples of compatible batteries that you might select—other brands offering AGM technology and matching specifications may also be appropriate. When shopping for a replacement, it is crucial to ensure the new battery is an AGM type and meets or slightly exceeds the specified ampere-hour and cold cranking figures to maintain the vehicle’s reliability.
Interestingly, the choice of an AGM battery brings additional benefits beyond just supporting Start-Stop technology. AGM batteries are known for their deep cycling capabilities, meaning they can be discharged and recharged repeatedly without significant loss of performance. This is particularly advantageous for sports cars like the Cayman II, which may be driven less frequently or subjected to periods of storage. In such scenarios, an AGM battery will generally retain its charge better and recover more quickly after recharging. Furthermore, the sealed design minimizes the risk of acid leaks, which can be damaging to the car’s engine bay and electronics.
It is also worth noting that while some owners may be tempted to install a conventional lead-acid battery due to lower initial cost, doing so could compromise the operation of the Start-Stop system and the longevity of the new battery itself. The vehicle’s charging system is optimized for AGM technology, and fitting a different type could result in improper charging rates, reduced battery life, or even error messages from the car’s onboard diagnostics.
In summary, for the Porsche Cayman II (981) from 2013 to 2016, it is advisable to select an AGM battery with a capacity between 80 and 82 Ah and a cold cranking current of 800 amps, such as the Bosch S5A 11, Exide EK800, Exide EK820, Halfords AGM 115, Lucas LF115, or Varta F21—these being a few examples of suitable models. Ensuring the battery matches these requirements will help maintain the performance and reliability of your Porsche, especially with its advanced Start-Stop system. Investing in the correct battery type is a small price to pay for peace of mind and continued driving enjoyment.
Porsche Cayman in version II (981) was produced in the years 2013 – 2016. We invite you to a list of batteries matching individual engine versions.
Basic parameters of batteries suitable for Porsche Cayman (2013-2016):
| Layout | Terminal types | Base hold-down |
|---|---|---|
| 0 – positive on the right side | 1 | B13 |
Porsche Cayman II (981) – petrol engines:
- 2.7 – with Start-Stop
- S 3.4 – with Start-Stop
| Model | Capacity and CCA | Dimensions (LxWxH) | Price |
|---|---|---|---|
| Bosch S5 AGM S5A 11 | 80 Ah 800 A | 315x175x190 mm | More |
| Exide AGM EK800 | 80 Ah 800 A | 315x175x190 mm | More |
| Exide AGM EK820 | 82 Ah 800 A | 315x175x190 mm | More |
| Halfords Advanced AGM 115 | 80 Ah 800 A | 317x175x190 mm | More |
| Lucas Fusion AGM LF115 | 80 Ah 800 A | 315x175x190 mm | More |
| Varta Silver Dynamic AGM F21 | 80 Ah 800 A | 315x175x190 mm | More |
FAQ – Porsche Cayman battery
What type of battery does the Porsche Cayman II (981) 2013-2016 require?
The Porsche Cayman II (981) produced between 2013 and 2016 typically requires an AGM (Absorbent Glass Mat) battery with dimensions of approximately 278mm x 175mm x 190mm and a capacity of around 70-80Ah. The battery should also have a high cold cranking amperage (CCA) to meet the performance requirements of the vehicle.
How do I know if my Porsche Cayman II (981) battery needs to be replaced?
Common signs that your battery needs replacement include slow engine cranking, electrical issues, dashboard warning lights, and trouble starting the car. If your battery is more than 4-5 years old, it’s a good idea to have it tested or consider replacement to avoid unexpected failures.
Can I replace the Porsche Cayman II (981) battery myself?
Yes, you can replace the battery yourself, but it’s important to follow proper procedures. Always disconnect the negative terminal first, then the positive. Ensure the new battery matches the required specifications, and after installation, reconnect the positive terminal first. Some models may require an electronic reset or coding after battery replacement, so consult your owner’s manual or a professional if you are unsure.
What are the best battery brands for the Porsche Cayman II (981) 2013-2016?
Top recommended battery brands for the Porsche Cayman II (981) include Varta, Bosch, Exide, and Yuasa. These brands are known for their quality, durability, and compatibility with high-performance vehicles like the Porsche Cayman.
How long does a battery typically last in a Porsche Cayman II (981)?
The average lifespan of a battery in a Porsche Cayman II (981) is around 4 to 6 years, depending on driving habits, climate, and maintenance. Regular checks and proper care can help extend the battery’s life and ensure reliable performance.
If you’re still unsure which battery fits your Porsche Cayman , or if you want to help others in their selection, please send us a photo of your current battery in the comment section at the bottom of the page. You can also send the picture to contact@whatbattery.co.uk (we will place it in the comments to also help other users). Be sure to specify the car model, year, type, as well as the engine capacity and power. We’ll do our best to assist you!