Trojan 8D-AGM Dual Terminal 230Ah 12V Dual-Purpose AGM Battery for Marine, RV & Industrial

Trojan's 8D-AGM combines powerful starting capability with true deep-cycle performance in a completely maintenance-free AGM design. Featuring Maxguard Advanced Design Separator and Alpha Plus paste formulation, it provides outstanding sustained performance, increased total energy output, and extended service life. Its sealed, non-spillable construction allows flexible installation and eliminates all routine watering and maintenance.

Key applications

• Marine – dual-purpose power for starting engines and running house loads including electronics, navigation, lighting, and accessories on boats and yachts.
• RV and motorhomes – reliable starting and house power for onboard systems including HVAC, refrigeration, lighting, and entertainment when shore power is unavailable.
• Renewable energy and backup systems – energy storage for solar arrays, off-grid installations, and backup power systems where AGM maintenance-free operation is preferred.
• Industrial floor machines – power source for scrubbers and sweepers requiring reliable starting and sustained operating power.
• Commercial and specialty vehicles – auxiliary power for work trucks, service vehicles, and equipment requiring both engine starting and accessory loads.

Design & construction

• AGM (Absorbed Glass Mat) sealed, valve-regulated design for maintenance-free operation and zero watering.
• Maxguard Advanced Design Separator and Alpha Plus paste formulation deliver exceptional performance and extended battery life.
• Non-spillable construction allows horizontal or vertical installation for flexible mounting options.
• High-impact ABS (Acrylonitrile Butadiene Styrene) case provides superior resistance to abrasion, heat, and harsh environments.
• Integrated plastic handle grips for easier lifting and positioning during installation.

Technical specifications

Capacity: 230 Ah at 20-hour rate (179 Ah at 5-hour, 210 Ah at 10-hour, 254 Ah at 100-hour)
Voltage: 12V
Reserve Capacity: 460 minutes @ 25 amps
Cold Cranking Amps (CCA): 1450 A
Cranking Amps (CA): 1850 A
Energy: 3.05 kWh
Weight: Approximately 161 lbs (73 kg)
Dimensions (L x W x H): 20.47" x 10.64" x 9.08" (520 x 270 x 231 mm)
Group Size: 8D
Chemistry: AGM (Absorbed Glass Mat) – sealed, valve-regulated
Terminal Type: DT (Dual Terminal) – Automotive Post & Stud (5/16"-18)
Product Line: Trojan Dual Purpose AGM Series
Battery Type: Sealed AGM dual-purpose (starting and deep-cycle)
Self-Discharge: Less than 3% per month
Operating Temperature: -4°F to 122°F (-20°C to 50°C)
Warranty: [To be confirmed – follow your regional Trojan/reseller warranty policy]

Installation & handling

• Maintenance-free, sealed AGM design eliminates watering and simplifies installation in hard-to-reach locations.
• Can be safely installed horizontally or vertically with proper ventilation, thanks to its non-spillable VRLA construction.
• Integrated handle grips facilitate safe lifting and positioning of this heavy battery during installation and service.
• Requires a charger with an appropriate AGM profile to ensure optimal performance and service life.