VMAX XTR31-135 Group 31 AGM Dual Purpose Battery – 135Ah / 1150 CCA

Product Description

Group 31 AGM Marine Battery

The VMAX XTR31-135 12V deep cycle marine battery delivers true dual-purpose AGM performance, combining 1,150 cold-cranking amps with 135Ah of deep cycle capacity in a standard Group 31 case. It’s built for applications that need both strong starting power and long, reliable runtime. Engineered using VMAX’s military-grade AGM construction, the XTR31-135 features thick internal plates, tightly packed separators, and a sealed, maintenance-free design. The result is excellent vibration resistance, high output, and durability that holds up in the toughest environments. Ideal for marine electronics, inverter systems, commercial equipment, and other high-draw applications.

Features & Benefits

• High Cranking Power – 1,150 cold cranking amps ensure reliable starting power in all weather conditions.
• Lift Equipment – Ideal starting battery for boom lifts, telehandlers, and other industrial equipment.
• 135Ah 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 – Replacement for marine, RV, and equipment applications using Group 31 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 31 – Replaces NAPA 8231, Odyssey ODX-AGM31M, Interstate 31M-AGM, plus many others.
• Dual Terminal Design – 5/16″ Studs + SAE Automotive Posts provide versatile connections.
• Duracell Replacement – Direct-fit upgrade for Duracell SLI31DTMAGMDC batteries.
• Built for Commercial Use – VMAX takes pride in building Tough Batteries for Tough Applications.

VMAX Xtreme Series AGM

VMAX Xtreme AGM batteries are engineered for applications that demand high power and zero excuses. 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 high-demand environments – inverter banks, off-grid systems, mobility equipment, trolling motors, and industrial machinery. You get rugged construction, long runtime, and maintenance-free reliability in a single platform that handles both starting bursts and sustained cycling.