GarageDex

Group 91 battery: equivalents & cars that use it

A BCI Group 91 battery measures 278×175×190 mm (L×W×H). The closest equivalents that fit the same tray are Group 48 - always confirm terminal side and CCA before swapping.

Cross-checked dataEvery spec is checked against manufacturer, retailer, and the BCI group-size standard, then dated.
Compiled and reviewed by the GarageDex editorial team - see how we verify →

What to look for in a Group 91 battery

Case size (L×W×H)278×175×190 mm
Typical CCA660-760 CCA (aim for 660+)
ChemistryStandard flooded
Vehicles using it20 across 1 make (2000-2011)

Computed across the 20 Group 91 vehicle-years in our verified dataset - a large sample of popular US models, not the entire fleet.

Buying a Group 91 battery

Match the group size (Group 91) and aim for at least 660 CCA - more in cold climates. Confirm your own car's rating on its page below; some trims require AGM. A battery is heavy to ship, so buying in person can win once you count free install and the core-charge refund - but to compare prices and reviews:

Best exact-fit replacementGroup 91, 660+ CCAShop Group 91 Best for cold climatesGroup 91, at or above 760 CCAShop Group 91 Best AGM upgrade (longer life)AGM Group 91 for heat and heavy loadsShop Group 91

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Group 91 equivalent sizes

These BCI groups share a near-identical case, so they may fit the same battery tray. “Same terminals” means the +/- posts sit on the same side; reversed terminals (R groups) can leave your cables short.

GroupCase (mm)Terminals
Group 48278×175×190same

Comparing two specific sizes? Use the battery cross-reference tool →

Cars that use a Group 91 battery

These vehicles are fitted with a Group 91 from the factory:

2011 Saab 9-3660-760 CCA2010 Saab 9-3660-760 CCA2009 Saab 9-3660-760 CCA2008 Saab 9-3660-760 CCA2007 Saab 9-3660-760 CCA2006 Saab 9-3660-760 CCA2005 Saab 9-3660-760 CCA2004 Saab 9-3660-760 CCA2011 Saab 9-5660-760 CCA2010 Saab 9-5660-760 CCA2009 Saab 9-5660-760 CCA2008 Saab 9-5660-760 CCA2007 Saab 9-5660-760 CCA2006 Saab 9-5660-760 CCA2005 Saab 9-5660-760 CCA2004 Saab 9-5660-760 CCA2003 Saab 9-5660-760 CCA2002 Saab 9-5660-760 CCA2001 Saab 9-5660-760 CCA2000 Saab 9-5660-760 CCA

Frequently asked

How many CCA does a Group 91 battery need?

Group 91 vehicles in our data ship with 660-760 CCA (typically around 660). Match your car's original rating or go higher - aim for the top of that range in cold climates.

Is a Group 91 battery AGM or flooded?

Group 91 is used with standard flooded batteries. AGM is an optional upgrade for longer life in heat and heavy electrical loads, and is safe to fit.

What size is a Group 91 battery?

A BCI Group 91 case measures 278×175×190 mm (L×W×H). Any Group 91 battery uses that footprint, so it drops into the same tray.

What is equivalent to a Group 91 battery?

The closest BCI sizes that fit the same tray are Group 48. Always confirm the terminal side and CCA before swapping - a reversed-terminal group can leave your cables short.