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What size battery is in a 2008 Honda Fit?

In the 2008 Honda Fit, you’ll typically find a standard 12-volt automotive battery. The most common replacement size for this model is Group 51R, though regional variations can occur.


This article breaks down the usual battery size and specs, how to confirm the exact size for your specific vehicle, and practical tips for replacement and care. It covers typical group sizes, voltage, performance ratings, and steps to verify your car’s requirements.


Common battery size and specs for the 2008 Honda Fit


The following details reflect the typical specs you’ll encounter when shopping for a replacement for a 2008 Fit. The battery is 12 volts and most often uses the Group Size 51R, with brand-dependent variations in cold-cranking amps and reserve capacity.



  • Voltage: 12 volts

  • Battery type: 12V lead-acid, maintenance-free (sealed)

  • Group size: commonly 51R (regional variations may list 51 or similar local equivalents)

  • Cold-cranking amps (CCA): typically around 320–360 A, depending on brand

  • Reserve capacity (RC): roughly 50–60 minutes


Note: Exact specifications can vary by market, trim level, and optional equipment. Always verify the exact group size and rating on your battery label or with Honda’s service data for your region.


How to verify the exact size for your 2008 Fit


To ensure you purchase the correct battery for your specific car, use these steps to confirm the exact size and rating.



  1. Check the battery label on top of the existing battery for the group size code (for example, “51R”).

  2. Consult your owner’s manual or Honda’s official service data for your VIN to identify the recommended group size and rating.

  3. When shopping online or at a parts store, enter your VIN or vehicle details to pull the precise match for your market and trim.

  4. If in doubt, ask a technician or the parts counter to verify the correct size using your VIN and current battery.


Many retailers will display the exact group size required for your 2008 Fit when you input your VIN. If you’re unsure, bring the old battery to compare and confirm the fit.


Replacement considerations and tips


Before replacing, consider climate, warranty, and installation specifics to choose a reliable battery that fits your vehicle well.



  • Choose a battery that meets or exceeds the OEM’s CCA rating, especially in colder climates.

  • Ensure the battery’s physical dimensions fit in the engine bay and that the terminal positions align with your cable harnesses.

  • Look for maintenance-free (sealed) designs compatible with the Fit’s electrical system.

  • Check warranty terms, including any free replacement period and prorated coverage.


Region-specific differences can occur. If you’re shopping outside North America, verify the local group size equivalents for your market and trim.


Region-specific differences


The Group Size commonly used in North America (52R/51R family) may have regional equivalents elsewhere. Always confirm the exact specification for your country or region to avoid fitment issues.


Summary


The 2008 Honda Fit generally uses a 12-volt lead-acid battery, with Group Size 51R being the typical replacement option in many markets. Always verify the exact size for your vehicle by checking the battery label, the owner’s manual, or with a dealer using your VIN, since regional differences can apply. When replacing, consider cold-cranking amps, reserve capacity, fit, and warranty to ensure reliable starts and daily performance.

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