Subaru Ascent Battery Size by Year

Every Subaru Ascent year we cover (2019-2027) uses a BCI Group 35 EFB battery.

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Battery by model year

Model yearsBatteryTypeCCABuy
2019-2027Group 35EFB540-640Shop Group 35

Match the group and type on the battery you are removing. Shop links go to Amazon, and we may earn a commission at no extra cost to you. Open your exact year below for CCA, terminals and our sources.

Every Ascent year

Choose your model year for the exact Group size, CCA, terminal layout, and the right replacement for your Subaru Ascent.

Sources. The battery size for 9 of 9 model years is checked against a cited source, most often AutoZone, Subaru U.S. Media Center and EPA fuel economy listing (2027 engines). Each year page lists its own sources.

Last verified 2026-10-08. Maintained by Matan B., who runs GarageDex. How we verify.

More specs for the Subaru Ascent