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2015-2019 Subaru Outback battery group size

The exact BCI group size your Outback takes — the code that decides which battery physically fits and reaches the cables. Cross-checked against the automaker's own chart and a retailer finder so you buy the right one the first time.

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Battery group size

25Flooded lead-acid2 sources

Verified · cross-checked against 2 independent sources · Jun 2026

A battery is bought by its group size. Shop Group 25 batteries that physically fit — double-check the group printed on the battery against your car before you buy.

Find a Group 25 battery on Amazon
Where this came from
  • subarupartsdeal.com (genuine Subaru part 82110AJ10A, JIS 75D23R = BCI 25, Outback in fits list) — source“82110AJ10A Genuine Subaru Battery — Manufacturer Note 75D23R-MF — This part fits 2010-2019 Legacy, 2010-2019 Outback”
  • subaruoutback.org (Gen-5 / BS owner reading the OE Group 25 battery) — source“The OE battery is BCI Group 25, but a Group 24 will fit”

The group size carries our verified badge only when the automaker's own battery chart and an independent retailer finder agree on it — two genuinely separate sources, never two resellers of the same data. CCA is shown as an OE minimum, a “choose at least this” floor, never a verified number, because the right CCA is a property of the battery you pick. Your owner's manual is always the final word.