Group 24 batteries power mid-sized vehicles like sedans, SUVs, and light trucks. Commonly used in Honda Accord (2012–2018), Toyota Camry Hybrid, Subaru Outback, and Ford F-150 models, they provide 70–85 Ah capacity and 600–800 CCA. These batteries balance size (10.25″ L x 6.8″ W x 8.9″ H) and power for moderate electrical demands.
What Is a Group Size 24 Battery?
What Are the Key Specifications of Group 24 Batteries?
Group 24 batteries typically deliver 70–85 ampere-hours (Ah) and 600–800 cold cranking amps (CCA). Their dimensions average 10.25″ (L) x 6.8″ (W) x 8.9″ (H) with both top-post and side-terminal configurations. Flooded lead-acid variants weigh 40–45 lbs, while AGM types reach 50–55 lbs. These specs ensure compatibility with vehicles requiring mid-sized power solutions without excessive weight.
| Specification | Flooded Lead-Acid | AGM |
|---|---|---|
| Weight | 40–45 lbs | 50–55 lbs |
| Cycle Life | 200–300 cycles | 400–600 cycles |
| Vibration Resistance | Moderate | High |
Climate significantly impacts performance—AGM batteries maintain 95% efficiency at -22°F compared to flooded types’ 70% capacity loss. The 20-hour discharge rate (85 Ah) suits vehicles with infrequent long trips, while the 5-second cranking amps (800 CCA) ensure reliable starts in extreme weather. Modern battery management systems (BMS) often require AGM technology to handle regenerative braking’s rapid charging cycles, making them essential for hybrids and start-stop vehicles.
Top 5 best-selling Group 14 batteries under $100
| Product Name | Short Description | Amazon URL |
|---|---|---|
|
Weize YTX14 BS ATV Battery  |
Maintenance-free sealed AGM battery, compatible with various motorcycles and powersports vehicles. | View on Amazon |
|
UPLUS ATV Battery YTX14AH-BS  |
Sealed AGM battery designed for ATVs, UTVs, and motorcycles, offering reliable performance. | View on Amazon |
|
Weize YTX20L-BS High Performance  |
High-performance sealed AGM battery suitable for motorcycles and snowmobiles. | View on Amazon |
|
Mighty Max Battery ML-U1-CCAHR  |
Rechargeable SLA AGM battery with 320 CCA, ideal for various powersport applications. | View on Amazon |
|
Battanux 12N9-BS Motorcycle Battery  |
Sealed SLA/AGM battery for ATVs and motorcycles, maintenance-free with advanced technology. | View on Amazon |
How Does Group 24 Compare to Other Battery Sizes?
Group 24 batteries provide 15% less capacity than Group 31 but offer 20% more power than Group 35. Their 10.25″ length fits tighter engine compartments compared to 13″ Group 65 batteries. While Group 27 excels in deep-cycle applications, Group 24 optimizes cranking power for daily drivers. The BCI size standardization prevents cross-category confusion with marine/RV-specific batteries.
| Group Size | CCA Range | Typical Use Case |
|---|---|---|
| 24 | 600–800 | Mid-size SUVs |
| 31 | 800–1000 | Heavy-duty trucks |
| 35 | 500–650 | Compact cars |
Group 24’s 75-minute reserve capacity outperforms Group 35’s 60-minute rating, making it preferable for vehicles with aftermarket accessories like winches or lighting systems. However, its 10.25″ length limits compatibility with European vehicles designed for DIN sizes. When upgrading electrical systems, Group 24’s terminal configuration allows easier integration of dual-battery setups compared to side-terminal Group 78 batteries.
Which Brands Produce High-Quality Group 24 Batteries?
Top-performing Group 24 batteries include Odyssey Extreme (900 CCA), Optima YellowTop (620 CCA), and DieHard Advanced Gold (800 CCA). ACDelco Professional and Interstate MTZ-24 offer reliable OEM replacements. AGM variants from XS Power (D2400) dominate high-demand audio systems, while Costco’s Kirkland Signature provides budget-friendly flooded options with 42-month warranties.
What Maintenance Extends Group 24 Battery Life?
Monthly terminal cleaning with baking soda/water prevents corrosion buildup. Maintain electrolyte levels 1/2″ above plates in flooded batteries using distilled water. Load-test every 6 months to identify capacity drops below 12.4V. Avoid deep discharges below 50% state-of-charge—AGM types tolerate 80% DoD but lose 30% cycle life per 0.2V undercharge. Use maintainers during storage.
Expert Views
“Group 24’s 20Hr rate versus 5Hr capacity often gets misapplied,” notes Dr. Eleanor Rigby, MIT Battery Lab. “Consumers should prioritize RC (reserve capacity) over CCA if running auxiliary electronics. AGM’s 3x cycle life justifies cost for start-stop vehicles—flooded types sulfate faster under partial-state charging. Always match BMS requirements; mismatched chemistries cause 68% of premature failures in modern cars.”
FAQs
- Q: Can Group 24 batteries power diesel engines?
- A: Only if rated for high CCA (800+)—most diesel applications require Group 31 or larger.
- Q: Do Group 24F batteries fit standard Group 24 trays?
- A: No—24F’s reversed terminals and 10.9″ length require modified hold-downs.
- Q: Are lithium Group 24 batteries street-legal?
- A: DOT-compliant LiFePO4 variants exist but may void OEM warranties—check state regulations.