What Size Battery Fits a 2017 Honda Accord?

Most 2017 Honda Accord 4‑cylinder models use a BCI Group 51R battery, V6 models typically use a larger Group 24F, and the Accord Hybrid uses a Group 51R (often AGM). Aim for roughly 410–500 CCA for Group 51R and 600–750 CCA for Group 24F, and always verify fitment and terminal orientation in your owner’s manual or under‑hood label.

Battery Specifications by Engine/Model

The correct battery group and recommended performance vary by the Accord’s engine and trim. Use the list below to match your specific model and typical climate needs.

• 2.4L I4 (LX, Sport, EX, EX-L and most non‑V6 trims):
  BCI Group 51R, top‑post, reversed terminals. Typical specs: 410–500 CCA, 70–85 min reserve capacity. Approx. size: 9.4 x 5.1 x 8.8 in (240 x 129 x 224 mm).
• 3.5L V6 (EX-L V6, Touring V6):
  BCI Group 24F, top‑post. Typical specs: 600–750 CCA, 110–140+ min reserve capacity. Approx. size: 10.3 x 6.8 x 8.9 in (262 x 173 x 225 mm).
• Accord Hybrid (2.0L I4 hybrid):
  BCI Group 51R; many suppliers specify AGM (especially if the 12V battery is trunk‑mounted and requires venting). Typical specs: 410–500 CCA. Confirm battery location and vent requirement for your market/trim.

If your car has aftermarket parts or regional differences, confirm the tray size, hold‑down, and cable reach before purchase. The 51R and 24F are the most common fits for U.S./Canada models.

Why These Sizes Are Recommended

Honda sized the battery to match the electrical load and starting demands of each powertrain. The 2.4L’s lower cranking demand is well served by Group 51R, while the V6’s higher load benefits from Group 24F’s additional capacity. The Hybrid’s 12V battery primarily powers control systems and accessories (the traction system handles propulsion), so a 51R—often AGM for venting safety—meets the need without the mass of a larger unit.

Climate and Usage Considerations

Selecting the right cold‑cranking amps (CCA) and battery type can improve reliability in your environment. The guidelines below can help fine‑tune your choice.

• Cold climates (regularly below 0°F / −18°C): Choose the higher end of the CCA range (e.g., 475–500 CCA for 51R; 700+ CCA for 24F).
• Hot climates/desert use: Heat shortens battery life; prioritize quality construction and longer reserve capacity (RC). Regularly test after 3 years.
• Short trips/infotainment-heavy use: Higher RC helps maintain voltage stability; AGM can tolerate deeper cycles better.
• Hybrid models: If trunk‑mounted, AGM with a vent tube is preferred/required for safety.

Matching CCA and RC to your conditions helps ensure reliable starts and longer service life, especially under extreme temperatures or heavy accessory loads.

How to Confirm the Correct Battery Quickly

Before buying, use these checks to avoid fitment or wiring issues.

1. Check the owner’s manual and under‑hood emission/battery labels for the specified group size and replacement notes.
2. Verify terminal orientation (51R is “reversed”) and cable reach to prevent strain on connectors.
3. Measure the tray and hold‑down; confirm height clearance under the hood.
4. For Hybrids, confirm whether the 12V battery is trunk or engine‑bay mounted and whether a vented AGM is required.
5. Match or exceed OEM CCA and reserve capacity; avoid going below factory specs.

These steps take minutes and ensure the new battery installs cleanly and meets the car’s electrical requirements.

Installation Notes and Best Practices

A few small details can prevent electrical gremlins and extend battery life after replacement.

• Use a memory saver if you want to preserve radio presets and window auto‑up/down initialization.
• Clean terminals and apply dielectric protectant; ensure the hold‑down is snug to reduce vibration damage.
• After installation, perform any needed window/roof or steering angle calibrations per the manual.
• Hybrid models: follow high‑voltage safety guidance and use only approved 12V batteries (AGM if specified).

Proper installation and post‑install checks help the charging system stabilize and reduce the chance of nuisance warning lights.

Summary

For a 2017 Honda Accord, most 2.4L trims use BCI Group 51R, V6 trims use Group 24F, and the Hybrid uses Group 51R (often AGM/vented). Target about 410–500 CCA for 51R and 600–750 CCA for 24F, and confirm fitment, terminal orientation, and venting needs in your owner’s manual or under‑hood label before purchase.

What is the difference between a 35 and 51R battery?

Groups 35 and 51R
The Group-51 Battery is found in Hondas, Nissan GTRs, and some other Japanese Cars. It can actually be used as a smaller/lighter version of the Group-35 for racing being it is same height and length, just narrower front to back.

What size battery is in the 2017 Honda Accord?

Duralast Group Size 24F Battery 24F-DL.

What group size is a Honda Accord battery?

DieHard Silver – Battery: 24 Group Size, 600 CCA, 750 CA, 110 Minute Reserve Capacity, For Lower Power Demands (Part No. 24FT-5)

How to find out what size battery your car needs?

How to Find the Right Group Size

1. Check the old battery label.
2. Use our online battery finder tool.
3. Ask your closest retailer of where your vehicle gets serviced.