What Is a Group 24 Battery? A Group 24 battery is a standardized 12-volt automotive battery with specific dimensions (approximately 10.25″ x 6.75″ x 8.75″) and terminal placements. It’s commonly used in cars, boats, RVs, and solar systems. Group size ensures compatibility with battery trays and electrical demands. These batteries typically provide 70-85 Ah capacity and 600-800 CCA (cold cranking amps) for reliable starting power.
What Is a Group Size 24 Battery?
How Does Group Size Affect Battery Performance?
Group size determines physical fit and electrical capacity. A Group 24 battery balances compact dimensions with sufficient power for mid-sized vehicles. Smaller groups (e.g., 24F) may have reversed terminals, while larger groups (e.g., 27) offer higher capacity. Incorrect sizing risks poor connectivity or insufficient energy for accessories like winches or audio systems.
For example, installing a Group 24 battery in a heavy-duty truck designed for Group 34 could lead to premature failure during cold starts. The smaller internal plates struggle to deliver sustained high-current demands. Conversely, using an oversized Group 27 battery in a compact car might cause clearance issues with hood closure or wiring harnesses. Always cross-reference your vehicle’s BCI (Battery Council International) group recommendation, which accounts for both dimensional constraints and power requirements specific to your engine size and electrical load.
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 |
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Weize YTX20L-BS High Performance  |
High-performance sealed AGM battery suitable for motorcycles and snowmobiles. | View on Amazon |
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Mighty Max Battery ML-U1-CCAHR  |
Rechargeable SLA AGM battery with 320 CCA, ideal for various powersport applications. | View on Amazon |
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Battanux 12N9-BS Motorcycle Battery  |
Sealed SLA/AGM battery for ATVs and motorcycles, maintenance-free with advanced technology. | View on Amazon |
What Are the Key Specifications of a Group 24 Battery?
- Voltage: 12V
- Capacity: 70-85 Ah
- CCA: 600-800 amps
- Terminal Type: Top-post (SAE) or dual terminals
- Weight: 40-50 lbs
- Chemistry: Flooded, AGM, or lithium-ion options
Which Vehicles Use Group 24 Batteries?
Common applications include Honda Civics, Toyota Camrys, marine engines, and Class C RVs. Always check your owner’s manual, as some trucks (e.g., Ford F-150) require larger groups. Marine versions add corrosion-resistant coatings, while RV batteries prioritize deep-cycle durability.
How Does a Group 24 Compare to Group 34 or 27?
| Group | Length | CCA | Use Case |
|---|---|---|---|
| 24 | 10.25″ | 600-800 | Mid-size sedans |
| 27 | 12.25″ | 750-900 | RVs/Boats |
| 34 | 10.25″ | 800-1000 | High-demand trucks |
The critical difference lies in reserve capacity. Group 27 batteries typically provide 25% more RC (Reserve Capacity) than Group 24, making them better suited for RVs powering appliances during dry camping. Group 34 matches Group 24’s length but uses thicker plates to deliver higher cold cranking amps – crucial for diesel engines in freezing temperatures. However, Group 34’s added weight (55-60 lbs) may exceed some vehicle suspension limits.
Why Choose AGM Over Flooded Group 24 Batteries?
AGM (Absorbent Glass Mat) batteries offer spill-proof construction, faster recharge times, and 3x longer lifespan than flooded versions. They’re ideal for vibration-prone applications like off-road vehicles. However, AGM costs 30-50% more upfront—budget $180-$300 vs. $100-$150 for flooded.
AGM technology excels in marine environments where battery orientation matters. Unlike flooded batteries that require upright positioning, AGM units can be mounted sideways without leakage risks. Their lower internal resistance also supports faster charging from alternators or solar panels – a critical advantage when replenishing power between daily drives. Maintenance-conscious owners appreciate the sealed design eliminating electrolyte top-ups, though proper voltage regulation is crucial to prevent overcharging damage.
Can You Use a Group 24 Battery for Solar Storage?
Yes, but deep-cycle variants are essential. Look for 100+ Ah models with 200+ cycle life at 50% depth of discharge. Lithium-ion Group 24 batteries (e.g., Battle Born) provide 3000+ cycles but cost $900+. For budget setups, Trojan T-105 (6V) in series often outperform 12V Group 24 options.
What Maintenance Does a Group 24 Battery Require?
- Check electrolyte levels monthly (flooded only)
- Clean terminals with baking soda/water mix
- Test voltage: 12.6V+ = charged; below 12.4V needs recharge
- Avoid discharging below 50% capacity
- Store at 50-80°F with periodic charging
“The shift to dual-purpose Group 24 batteries—optimized for both starting and deep cycling—is reshaping the marine and RV markets. We’re seeing lithium adopters gain 70% weight savings but struggle with BMS (Battery Management System) compatibility in older vehicles.”
– Industry Engineer, PowerTech Batteries (2023)
Conclusion
Group 24 batteries deliver versatile power for mainstream automotive and auxiliary needs. When selecting between flooded, AGM, or lithium options, prioritize application-specific requirements like vibration resistance, cycle life, and upfront budget. Always verify terminal orientation and tray dimensions before purchase.
FAQs
- How Long Do Group 24 Batteries Last?
- 3-5 years for flooded, 4-7 years for AGM, 8-12 years for lithium. Frequent deep discharges halve lifespan.
- Can Group 24 Fit in a Group 35 Tray?
- No—Group 35 is 1″ longer. Use adapters only if securing bolts align, but expect reduced vibration protection.
- Are Group 24 and 24F Interchangeable?
- Only if terminals match. Group 24F has reversed posts (+ on left). Mismatching risks short circuits.