A Group 30 battery is a standardized lead-acid battery defined by the Battery Council International (BCI), measuring approximately 13 x 6.8 x 9.4 inches. It delivers 105-125 Ah capacity and 600-800 CCA, commonly used in RVs, marine vessels, and commercial vehicles. Its compatibility, durability, and high power output make it ideal for deep-cycle and starting applications.
What Is a Group Size 24 Battery?
What Are the Key Specifications and Dimensions of a Group 30 Battery?
A Group 30 battery typically measures 13 inches in length, 6.8 inches in width, and 9.4 inches in height, with terminal posts in top or side configurations. It provides 105-125 amp-hours (Ah) capacity, 600-800 cold cranking amps (CCA), and 12V voltage. These specifications ensure compatibility with heavy-duty applications requiring sustained power delivery and reliable starting performance.
| Specification | Range |
|---|---|
| Length | 13 inches |
| Width | 6.8 inches |
| Height | 9.4 inches |
| CCA | 600-800 |
Which Vehicles and Applications Commonly Use Group 30 Batteries?
Group 30 batteries power RVs, marine boats, commercial trucks, and off-grid solar systems. They support dual-purpose roles, such as starting diesel engines and running auxiliary electronics in motorhomes. Marine variants include reinforced grids to withstand vibrations, while deep-cycle models excel in renewable energy storage due to their high reserve capacity and cyclic endurance.
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 |
|
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 a Group 30 Battery Compare to Group 24, 27, and 31 Batteries?
Group 30 batteries offer higher Ah (105-125) and CCA (600-800) than Group 24 (70-85 Ah) and Group 27 (85-105 Ah), but lag behind Group 31’s 125-155 Ah range. Their mid-size dimensions balance power and space efficiency, making them preferable for RVs and marine use where Group 31’s larger footprint isn’t feasible. Terminal types and corrosion resistance also vary across groups.
What Are the Best Maintenance Practices for Prolonging Group 30 Battery Life?
Monthly voltage checks (12.6V+), terminal cleaning with baking soda solutions, and avoiding discharges below 50% extend lifespan. For flooded models, distilled water refills maintain electrolyte levels. AGM variants require no maintenance but benefit from periodic equalization charges. Storage in cool, dry environments at 50% charge prevents sulfation, while desulfators rejuvenate aging batteries.
Temperature plays a critical role in battery longevity. Extreme heat accelerates fluid evaporation in flooded batteries, while cold temperatures reduce CCA efficiency. Installing thermal wraps in engine compartments and using insulated battery boxes can mitigate these effects. For terminals, applying anti-corrosion gel after cleaning creates a protective barrier against moisture and acid fumes. Advanced users may employ hydrometers to measure electrolyte specific gravity monthly, ensuring optimal cell balance.
| Maintenance Task | Frequency | Tools Required |
|---|---|---|
| Voltage Check | Monthly | Multimeter |
| Terminal Cleaning | Quarterly | Wire brush, baking soda |
| Equalization Charge | Every 6 months | Smart charger |
How Have Technological Advancements Influenced Group 30 Battery Performance?
Absorbent Glass Mat (AGM) technology boosted Group 30 batteries’ vibration resistance and spill-proof design, ideal for marine use. Lithium-ion variants now offer 50% weight reduction and 3x cycle life but cost 2-4x more. Smart batteries with Bluetooth SOC monitoring and adaptive charging algorithms optimize efficiency, while carbon-enhanced plates reduce sulfation in deep-cycle models.
Recent innovations include hybrid systems combining AGM and lithium technologies. These batteries use lithium cores for energy storage with AGM backup for high-current demands, achieving 40% weight savings over traditional setups. Advanced battery management systems (BMS) now feature temperature-compensated charging, automatically adjusting voltage based on environmental conditions. Some manufacturers have introduced modular designs allowing users to replace individual cells instead of entire batteries, reducing long-term costs by 25-30%.
Expert Views
“The shift toward AGM Group 30 batteries reflects broader industry trends,” notes a lead engineer at a top battery manufacturer. “They handle 2x more charge cycles than flooded models and withstand marine conditions. However, users must upgrade charging systems—older alternators can’t detect AGM’s lower internal resistance, leading to undercharging. Always consult your vehicle’s voltage requirements before switching technologies.”
FAQs
- How Long Does a Group 30 Battery Typically Last?
- With proper maintenance, flooded Group 30 batteries last 3-5 years, AGM versions 4-7 years, and lithium-ion models 8-12 years. Deep discharges below 50% reduce lifespan by 30-40%.
- Can a Group 30 Battery Be Used in Solar Power Systems?
- Yes, deep-cycle Group 30 batteries are ideal for solar storage, offering 105-125 Ah capacity. AGM types are preferred for their low self-discharge (3% monthly) and tolerance for partial state-of-charge operation.
- Are Group 30 Batteries Interchangeable With Group 34?
- No. Group 34 batteries are shorter (10.25” vs 13”) and have different terminal placements. Always verify BCI group numbers and dimensions before replacement.