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2017-2022 Honda CR-V battery group size

The exact BCI group size your CR-V 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

51RFlooded lead-acid2 sources

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

OE minimum CCA

≥ 410

Choose at least this — never a verified figure

A battery is bought by its group size. Shop Group 51R batteries that physically fit — double-check the group printed on the battery against your car before you buy.

Find a Group 51R battery on Amazon
Where this came from
  • hondapartsnow.com (genuine Honda part 31500-SR1-100M, group baked in title, CR-V in fits list) — source“Genuine Honda Battery (51R/500Amp85) 31500-SR1-100M — Battery is Part Code 31500; fits list includes 2017 / 2018 / 2019 Honda CR-V”
  • crvownersclub.com (owner reading the OEM 51R battery in their CR-V) — source“you need a size 51R battery with a minimum CCA of 410 amps, what the OEM battery has”

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.