The 2010 Honda Fit typically uses a Group 51R, 12-volt automotive battery.
In the United States, the factory-installed battery for the Fit is commonly a Group 51R. Regional versions or aftermarket replacements may use a similar-sized Group 51/51R packaging. Always verify the correct size by checking the current battery label or the owner's manual, and consider climate when choosing cold-cranking amps (CCA) and capacity.
Understanding what Group 51R means for the Fit
Group size is a standardized code that indicates the battery’s fit in the tray, terminal layout, and overall dimensions. For the 2010 Fit, Group 51R is a compact option that fits the under-hood space while providing adequate starting power for the vehicle’s electrical system. If you see a different group size on a replacement battery, it may not fit correctly or could require modifications.
To confirm the right battery for your 2010 Fit, follow these steps:
- Check the owner's manual or the under-hood label for the recommended group size (often 51R for US-market Fits).
- Inspect the current battery’s side or top label to read the group size, cold-cranking amps (CCA), and amp-hour rating (AH).
- Compare the replacement battery’s dimensions and terminal layout to ensure it fits the tray and cable routing in your vehicle.
- Verify that the battery’s terminal orientation matches your cable connections and that there’s no interference with nearby components.
Verifying the size and specs before purchasing helps avoid fit issues and returns.
Replacement tips and practical considerations
When shopping for a replacement, keep these guidelines in mind to ensure reliable performance in your 2010 Fit:
- Choose a reputable brand that offers Group 51R batteries compatible with Honda models (examples include major automotive brands and OEM-equivalent options).
- Match or exceed the original CCA rating appropriate for your climate; batteries in the 51R class commonly range from roughly 320 to 380 CCA, with higher figures favored in very cold environments.
- Consider reserve capacity (RC) along with CCA and AH; a higher RC can help electronics run longer if the alternator is stressed or during longer accessory use without the engine running.
- Check warranty terms and ensure the hold-down hardware and terminals will fit your model without modification.
With the right Group 51R battery, the Fit’s starting reliability and electrical performance should remain consistent across seasons.
Summary
The 2010 Honda Fit generally uses a Group 51R 12-volt battery in US-spec models. Always verify the battery group size on the current unit or in the owner's manual, and confirm that the replacement’s dimensions, terminal layout, and CCA rating suit your climate and vehicle configuration. When in doubt, consult a trusted parts retailer or Honda service center to ensure a correct and safe fit.
What kind of battery does a 2010 Honda Fit use?
Super Start Extreme Standard Flooded Top Post Battery Group Size 151R 340 CCA 55 Minute RC - 151REXT.
What is the battery voltage for a 2010 Honda Fit?
12-volt
The 2010 Honda Fit typically uses a 12-volt, maintenance-free lead-acid battery sized to Honda specifications; OEM-grade replacements match factory electrical and cranking performance.
What battery size does a Honda Fit use?
Honda Fit Battery FAQs
Most Honda Fit models use a Group Size 151R battery, though it's always best to confirm by using our battery fitment tool to match your specific year and engine type.
Are 51 and 51R the same battery?
This dimensional variation optimizes weight and performance for specific applications, such as lower cranking amps and reserve capacity. Furthermore, these batteries feature distinct terminal polarities: Group 51 places its positive terminal on the left, while Group 51R aligns it on the right.


