What Are the Primary Applications of Group 24S Batteries?
These batteries power marine engines, trolling motors, RV house systems, and off-grid solar arrays. Their deep-cycle capability supports prolonged energy delivery for appliances, while high CCA ensures reliable engine starts. Boaters favor them for dual-purpose use, and RV owners rely on them for inverters and lighting. Solar installations benefit from their 80–100% depth-of-discharge tolerance.
What Is a Group Size 24 Battery?
In marine environments, Group 24S batteries demonstrate exceptional resistance to saltwater corrosion and vessel vibrations. They efficiently power fishfinders, navigation systems, and bilge pumps during extended fishing trips. For RV applications, these batteries maintain consistent performance through temperature fluctuations, supporting refrigerators, HVAC systems, and entertainment setups for days without shore power. Their ability to handle simultaneous charging from solar panels and alternators makes them indispensable for overlanding enthusiasts. Many off-grid cabins utilize multiple Group 24S units in parallel configurations to create robust energy storage systems capable of running power tools and medical equipment.
How Does Group 24S Compare to Group 27 or 31 Batteries?
Group 24S offers 70–85 Ah, whereas Group 27 provides 85–105 Ah and Group 31 exceeds 100 Ah. While smaller in size, Group 24S excels in space-constrained setups. Group 31 suits heavy-duty needs but weighs 60–75 lbs. For balance between capacity and footprint, Group 24S dominates mid-range applications. Its CCA (650–850) outperforms Group 24F (550–750) but lags behind Group 31’s 900+ CCA.
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 |
| Feature | Group 24S | Group 27 | Group 31 |
|---|---|---|---|
| Capacity (Ah) | 70-85 | 85-105 | 100-125 |
| CCA Range | 650-850 | 750-900 | 900-1150 |
| Weight (lbs) | 40-55 | 50-65 | 60-75 |
When selecting between these battery groups, consider your spatial limitations and energy requirements. Group 24S proves ideal for compact engine compartments in mid-sized boats or Class B RVs where every cubic inch matters. Its 8.9″ height allows installation under most vehicle seats, while Group 31’s taller profile (9.6″) often requires custom mounting solutions. For applications requiring brief high-current bursts rather than sustained output – like diesel engine starting – Group 24S provides sufficient punch without the weight penalty of larger batteries.
“Group 24S remains the Swiss Army knife of marine energy. The rise of dual-purpose AGM models lets boaters eliminate separate starting/house batteries, saving 50 lbs. New carbon additives are pushing cycle counts closer to lithium, but thermal management remains critical—85°F ambient temps can halve lifespan.”
— Marine Systems Engineer, Johnson Battery Tech
FAQs
- Can a Group 24S battery power a 2,000W inverter?
- Yes, but only briefly. A 100Ah battery delivers 1,200Wh (100Ah x 12V). At 2,000W, runtime is 36 minutes (1,200Wh ÷ 2,000W ≈ 0.6 hours) before reaching 50% DoD. Pair multiple batteries for sustained loads.
- How to revive a sulfated Group 24S battery?
- Apply a desulfation charge: 15V at 2A for 8–12 hours. AGM batteries recover 10–20% capacity if sulfation is mild. For severe cases, replace the battery—sulfation beyond 50% capacity loss is irreversible.
- Are Group 24S batteries DOT-approved for air travel?
- No. FAA prohibits spare lead-acid batteries in checked/carry-on luggage. Installed batteries in RVs/boats require terminals to be insulated and secured with non-conductive covers.