Product Description
Group 8D Heavy Duty Battery
The VMAX XTR8D-310 12V battery delivers dependable starting power along with strong reserve capacity for commercial trucks, buses, agricultural tractors, farm equipment, and commercial fleet vehicles that require Group 8D batteries. Built for hard working equipment, VMAX Xtreme XTR8D-310 high-performance battery combines strong power with high capacity for extended run time and top performance through any season. Maintenance-free AGM technology combined with 100% virgin lead plates ensures hassle-free operation, superior durability, and long service life. Experience the value VMAX AGM batteries provide with longer lifespans, lower maintenance costs, and more in-service time for your equipment.
Features & Benefits
- High Cranking Power – 1,200 cold cranking amps ensure reliable starting power in all weather conditions.
- 310Ah Deep-Cycle Capacity – Designed for frequent deep discharges without loss of capacity.
- AGM Construction – Heavy-duty plates with Absorbed Glass Mat separators for extreme durability.
- Heavy Vibration Resistance – Rugged construction ideal for marine, RV, and industrial environments.
- Compatibility – Direct-fit AGM upgrade for heavy equipment using group 8D batteries.
- Low Self-Discharge – Maintains a charge longer between uses than conventional flooded batteries.
- Temperature Tolerant – Dependable starting power in both high and low temperatures.
- Group 8D – Replaces NAPA 9275, Deka 908DFT, Interstate 8D-XHD, plus many others. Cross-Reference
- Dual Terminal Design – 3/8″ Studs + SAE automotive top posts provide versatile connections.
- Built for Commercial Use – VMAX takes pride in building Tough Batteries for Tough Applications.
VMAX Xtreme Series Commercial Batteries
VMAX Xtreme AGM batteries are engineered for applications that require strong starting power in relentless conditions and severe temperatures. Built with thick, military-grade lead plates and tightly compressed AGM separators, they deliver true deep-cycle endurance, fast recovery, and consistent output—day after day. These batteries are purpose-built for heavy equipment and industrial machinery that can't afford downtime. You get rugged construction, impressive starting power, and maintenance-free reliability in a single battery that handles both heavy starting loads and sustained energy for lights and accessories.
Bulk Pricing on VMAX XTR8D-310 Batteries + Free Shipping
2-3 — $20.00 Off Each
4-7 — $35.00 Off Each
8+ — $50.00 Off Each
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| Nominal Voltage | 12 Volts |
| Capacity | 310Ah / 4.1 kWh |
| Type | Dual Purpose AGM |
| Cold Cranking Amps (CCA) | 1200 Amps |
| Marine Cranking Amps (MCA) | 1550 Amps |
| Group Size | 8D |
| Length | 20.8" (528 mm) |
| Width | 10.6" (269 mm) |
| Height | 8.7" (221 mm) 9.5" (241 mm) w/terminals |
| Terminals | 3/8" Studs (hardware incl.) & SAE Top Posts |
| Weight | 170 lbs (77.1 kg) |
| Charging Current | 20 - 80 Amps |
| Charging Voltage | 14.6V - 14.8V |
| Float Voltage | 13.5V - 13.8V |
| Warranty | 1 Year |
VMAX XTR8D-310 Battery Cross-Reference
Group 8D Flooded & AGM Batteries: 12CRV8D, 15020274, 1726-M8A8D, 1726-M8D1100, 5001771, 708D, 7269, 7269EX, 8-DA, 8A-8D, 8A8D, 8D, 8D-1400, 8D-1475, 8D-2, 8D-4, 8D-7, 8D-AGM, 8D-HD, 8D-HP, 8D-MHD, 8D-PRM-SP, 8D-XHD, 8D1000, 8D1100, 8D2, 8DHC, 8DMF-HD, 8DX-24, 8DX24, 8G8D, 908DFT, 9275, 9275EX, 96091, A4D, A8D, ABP A708D, ABP A8A8D, AGM 4D, AGM8D, AMP-8D-2, BB8D, BH-8DW, BU808D11, C8D-3, CB8D-AGM, CB8D-IT, CBEV-8D-330A, CSA8D-1200, DB1100-8D, DB8A8D, DC260-12, EP V8A8D, EP V8D1100, EP708D, EP8A8D, ES8D, GPL-8DA, GPL-8DL, M-8D, MP8D, MP8DAGM, NG8D, ODP-AGM8D, RB200, RB300, S12-290AGM, SLI8DB, SLIA8D, SLIDAGMDP, T716, T904, T975, T978, UB-8D, US AGM 8D, XTR8D-310.
Replacement for High-amp FT version Group 8D Batteries: 15020217, 1726-M908DFT, 7271FT, 7271FTEX, 8A8D, 8D, 8D-3FT, 8DM-AGM-MT, 8D-FT, 8D-MHD, 8D1300, 8DFT, 8DFT-9, 8DFT24, 8DHD, 8DMF-XHD, 8D-MHD, 908DFT, 908FT, ABP A908DFT, BU808DFT, C8D-FT, DB1425-8DFT, EP V908DFT, EP908DFT, HP8DFT, M-8DHC, MP8DFT, SLI8DAFT, SLI8DAFTMTA, T4-8D, XTR8D-310.
Important: Always confirm your battery's dimensions, terminal configuration, and specifications before purchase to ensure proper fit and performance.
Recommended Chargers for the XTR8D-310
Battery Tender 26A Charger & Maintainer
Compare Other Group 8D Batteries
Common Group 8D Applications
- Boat & Yacht Marine Power
- RVs and Motorhomes
- Solar & Off-Grid Energy Storage
- Commercial Trucks & Buses
- Farm Tractors & Agricultural Equipment
- Industrial Equipment & Heavy Machinery