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2018-2023 Subaru Crosstrek battery group size

The exact BCI group size your Crosstrek 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

35Flooded lead-acid2 sources

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

OE minimum CCA

≥ 620

Choose at least this — never a verified figure

A battery is bought by its group size. Shop Group 35 batteries that physically fit — double-check the group printed on the battery against your car before you buy.

Find a Group 35 battery on Amazon
Where this came from
  • Interstate Batteries 2023 Application Guide (BCI/Clarios feed — retailer finder, one witness) — source“Subaru • Crosstrek 2023-21 H4/2.5L w/Start-Stop 35(Q85) 620”
  • Genuine Subaru battery part (subarupartsdeal.com) — source“Part 82110AE011, manufacturer note "75D23L": "2017-2018 ... 2.5i" / parts.subaru cross-listing "2020 Subaru Crosstrek ... Base, Premium, Limited" — 75D23L = BCI Group 35”

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.