Subaru Forester Battery Size (BCI Group and CCA)

Each row links to the full specification for that generation, including trim-by-trim breakdowns and the part numbers. Where engines within a generation differ, that page separates them.

The battery on a Subaru Forester is set by its generation, not its model year, so each generation has one page carrying the complete figures, part numbers and fitment notes for every year it covers.

What size battery does a Subaru Forester take?

BCI group 35. Group size is a physical dimension and terminal-position standard, so a battery from a different group may not clamp down or may put the terminals on the wrong side.

Does the Subaru Forester need an AGM battery?

The factory battery is an EFB type. Match the type when you replace it.

Where is the battery on a Subaru Forester?

Engine bay, driver side.

Does a Subaru Forester need the battery registered after replacement?

12V accessory battery only, the Hybrid's separate lithium-ion traction battery pack is a sealed, high-voltage component serviced only by trained technicians. Non-hybrid trims continue with an EFB Group 35 supporting standard start-stop.