2008 Pontiac G6 Battery Size
The 2008 Pontiac G6 uses a BCI Group 90 battery, rated about 540-640 cold cranking amps (Flooded).
- Battery type (OEM)
- Flooded
- Cold cranking amps (CCA)
- 540-640
- Terminal position
- Standard-terminal layout
- Dimensions (L×W×H)
- 242×175×175 mm
- Location
- Under the hood (engine bay)
Group 90 (metric T5). Always confirm against your owner's manual or current battery label.
Where to buy a Group 90 battery
A car battery is heavy and expensive to ship, so buying in person (Walmart, Costco, or a local auto-parts store) often beats online once you count free installation and the core-charge refund on your old battery. To compare prices and reviews online:
Search Group 90 batteries on Amazon540+ CCA, FloodedAs an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently asked
What size battery does a 2008 Pontiac G6 take?
The 2008 Pontiac G6 uses a BCI Group 90 battery, rated around 540-640 cold cranking amps.
Does the 2008 Pontiac G6 need an AGM battery?
No - it comes with a flooded battery from the factory. You can usually upgrade to AGM in the same Group 90 size, but it isn't required.
How many cold cranking amps (CCA) does it need?
Aim for roughly 540-640 CCA. Choosing at or above the OEM rating is fine; going below can cause hard starts in cold weather.
Where is the battery located?
Under the hood (engine bay). Standard-terminal layout.
Other vehicles that use Group 90
See all cars that take a Group 90 battery →Also check the wiper sizes for your 2008 Pontiac G6 →