The Ultimate Guide to the 2008 Honda Odyssey Battery

by Phil Borges // in Car

If you’re a proud owner of a 2008 Honda Odyssey, it’s crucial to keep track of your battery’s state to avoid being stranded in the middle of nowhere. In this article, we will discuss everything you need to know about the 2008 Honda Odyssey battery, including its type, group size, CCA, and voltage.

What Type of Battery is an Odyssey?

The Odyssey is a high-performance battery designed for heavy-duty use in vehicles with high energy demands. It is classified as an Absorbed Glass Mat (AGM) battery. AGM batteries are maintenance-free and have a long lifespan compared to other battery types. They’re also resistant to vibrations, making them ideal for bumpy roads.

What is Battery Group Size for Honda Odyssey?

The battery group size for the 2008 Honda Odyssey is Group 35. The group size refers to the battery’s physical dimensions, which should match the battery tray in your vehicle. Ensure that you buy a battery with the correct group size to prevent issues with installation and compatibility.

How Many CCA does a 2008 Honda Odyssey Have?

The Cold Cranking Amps (CCA) rating is a crucial factor when choosing a battery, especially in colder climates. CCA measures the battery’s ability to start the engine in cold temperatures. The 2008 Honda Odyssey battery has a CCA rating of 550. This rating is sufficient for normal daily use but may not be suitable for extreme weather conditions.

What Should the Battery Voltage be on a 2008 Honda Odyssey?

The battery voltage on a 2008 Honda Odyssey should be around 12.6 volts when the engine is off. When the engine is running, the voltage should be between 13.7 to 14.7 volts. However, these readings may vary depending on the age and condition of the battery. If you notice any significant variations or low voltage readings, it may be time to replace your battery.


In conclusion, keeping your 2008 Honda Odyssey battery in good condition is essential to ensure smooth vehicle operation. Be sure to check your battery’s state regularly and replace it when necessary. Remember to consider the type, group size, CCA rating, and voltage requirements when choosing a battery to guarantee maximum performance and reliability.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.