What Does Battery Group 24F Mean?

A Battery Group 24F refers to a standardized size, terminal configuration, and power capacity for automotive batteries. This group is common in Asian-made vehicles, including Toyota, Honda, and Nissan models. It ensures compatibility with specific engine requirements and physical battery trays. The “F” denotes terminal placement (positive on the left), distinguishing it from other Group 24 variants.

What Is a Group Size 24 Battery?

What Are the Dimensions and Specifications of a Group 24F Battery?

A Group 24F battery typically measures 10.25″ (L) x 6.8″ (W) x 8.9″ (H), with a BCI group size code of 24F. It delivers 550-750 cold cranking amps (CCA) and 70-85 amp-hours (Ah). Terminal posts are top-mounted, with the positive terminal on the left when facing the battery. Weight ranges from 35-45 lbs, depending on plate technology and electrolyte type.

Specification	Range
Length	10.25 inches
Width	6.8 inches
Height	8.9 inches
CCA	550-750 amps
Weight	35-45 lbs

Which Vehicles Use a Group 24F Battery?

Group 24F batteries power vehicles like Toyota Camry (1997-2023), Honda Accord (1998-2023), Nissan Altima (2002-2023), Lexus ES 350, and Acura TL. They’re also used in select Hyundai, Kia, and Subaru models. Always verify compatibility via the owner’s manual or OEM specifications, as some manufacturers use regional variations of Group 24 sizing.

Japanese automakers specifically engineer their electrical systems around Group 24F dimensions. For example, the 2023 Honda Accord Hybrid requires this size to accommodate its dual charging ports for hybrid components. Recent Nissan models with ProPILOT Assist technology often use AGM variants of Group 24F batteries to handle increased sensor loads. When replacing, check for updated fitment guides – some 2020+ vehicles now require lithium-ion hybrid batteries that maintain the 24F footprint while adding auxiliary power connections.

Manufacturer	Common Models	Model Years
Toyota	Camry, RAV4 Hybrid	1997-2023
Honda	Accord, CR-V	1998-2023
Nissan	Altima, Maxima	2002-2023

How Does Group 24F Differ From Group 35 or 24R Batteries?

Group 24F differs from Group 35 in physical dimensions (0.5″ taller) and terminal placement. Compared to Group 24R, which has reversed terminals (positive on right), Group 24F ensures proper cable routing in Asian vehicles. Capacity varies: Group 35 offers higher CCA (650-800) for larger engines, while Group 24F prioritizes fitment in compact engine bays.

What Are the OEM Specifications for Group 24F Batteries?

OEM specs vary by automaker: Toyota requires 550+ CCA and 70+ Ah for most models. Honda specifies side-mounted vent tubes and JIS terminal sizing. Nissan mandates enhanced cyclic durability for stop-start systems. Aftermarket replacements must meet SAE J537 and BCI standards, with OEM-equivalent reserve capacity (90-120 minutes) for electronics-heavy vehicles.

Can Group 24F Batteries Be Used for Deep Cycle Applications?

Standard Group 24F batteries are starter batteries, not designed for deep cycling. However, AGM (Absorbent Glass Mat) variants like Odyssey 24F-PC1500 tolerate 400+ cycles at 80% depth of discharge. For marine/RV use, dual-purpose batteries like XS Power D2400 combine 800 CCA with 120 Ah capacity, blending cranking power and cycling endurance.

How Do You Maintain a Group 24F Battery?

Maintenance includes monthly terminal cleaning with baking soda/water, checking electrolyte levels (if non-sealed), and voltage testing (12.6V+ at rest. Use a maintainer if the vehicle sits unused—parasitic drain in modern cars can discharge batteries in 2-3 weeks. Replace every 3-5 years; earlier failure may indicate alternator issues or excessive accessory loads.

What Warranty Considerations Exist for Group 24F Batteries?

Warranties range from 18-84 months. Pro-rated plans (e.g., 3-year free replacement + 2-year pro-rated) are common. AGM batteries often have longer coverage. Note: Warranties void if used in incompatible vehicles or with aftermarket electronics exceeding rated capacity. Retailers may require load tests before honoring claims—keep receipts and maintenance records.

Manufacturers typically calculate pro-rated warranties based on months used versus purchase price. For example, a $150 battery with 60-month warranty would depreciate at $2.50/month. If failing at 40 months, you’d pay $50 (remaining 20 months x $2.50) for replacement. Some premium brands like Interstate offer “free replacement periods” where full swaps occur within 18-36 months regardless of failure cause. Always check if warranty requires professional installation documentation.

“Group 24F batteries are evolving with vehicle tech. Newer models now integrate lithium-ion components in hybrid systems while retaining the 24F footprint. Mechanics should prioritize batteries with calcium-alloy grids and stamped positive plates—they handle higher under-hood temperatures from turbocharged engines.” – Senior Automotive Engineer, Global Battery Manufacturers Association

Conclusion

Understanding Battery Group 24F ensures optimal vehicle performance and longevity. From sizing nuances to OEM compatibility, selecting the right battery involves balancing physical dimensions, cranking power, and application-specific needs. With advancing technologies like AGM and lithium hybrids, Group 24F remains a critical standard for millions of vehicles worldwide.

FAQ

Can I replace a Group 24F with a Group 35 battery?

No—Group 35 is taller (9.06″ vs 8.9″) and may cause hood contact. Terminal positions also differ, risking cable stress.

Does Group 24F fit European cars?

Rarely. European models typically use DIN or LN codes. Check for cross-compatibility listings—some Mercedes-Benz models accept 24F via adapter kits.

How long to charge a dead Group 24F battery?

A 10-amp charger replenishes a fully discharged battery in 4-6 hours. For sulfated batteries, use a 2-amp trickle charge for 12-24 hours.