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2007-2013 Chevrolet Avalanche battery group size

The exact BCI group size your Avalanche 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

48Flooded lead-acid2 sources

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

OE minimum CCA

≥ 730

Choose at least this — never a verified figure

A battery is bought by its group size. Shop Group 48 batteries that physically fit — double-check the group printed on the battery against your car before you buy.

Find a Group 48 battery on Amazon
Where this came from
  • Interstate Batteries 2023 Application Guide (BCI/Clarios feed — retailer finder, one witness) — source“Chevrolet • Avalanche 2013-09 V8/5.3L 48 730”
  • GM Genuine Parts catalog (parts.gmparts.com), genuine "ACDelco Gold 42 Month Warranty High Reserve BCI Group 48 Battery" product page, "Fits these vehicles" Chevrolet tab — source“Avalanche 2007, 2008, 2009, 2010, 2011, 2012, 2013”

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.