Product Description
XTR12-155 AGM Marine Starting Battery
The VMAX XTR12-155 12V deep cycle marine battery delivers true dual-purpose AGM performance, combining 850 cold-cranking amps with a 155Ah capacity in a Group GC12 case. It’s built for applications that need both strong starting power and long, reliable runtime—without a compromise.
Engineered using VMAX’s military-grade AGM construction, the XTR12-155 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, the XTR12-155 is a dependable upgrade when reliability, endurance, and versatility matter.
Features & Benefits
- High Cranking Power – 850 cold cranking amps ensure reliable starting power in all weather conditions.
- 155Ah 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.
- Group GC12 – Replacement or upgrade for many RV, marine, and off-grid applications.
- Low Self-Discharge – Maintains a charge longer between uses than conventional flooded batteries.
- Temperature Tolerant – Dependable starting power in both high and low temperatures.
- Dual Terminal Design – 5/16″ Studs + SAE Automotive Posts provide versatile connections.
- 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. 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, golf carts, 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. When failure isn’t an option and compromises cost you time, VMAX Xtreme AGM is built to perform.
| Voltage | 12V |
| Capacity | 155Ah |
| Type | Dual Purpose AGM |
| Cold Cranking Amps | 850 Amps |
| Marine Cranking Amps | 1,150 Amps |
| Group Size | GC12 |
| Length | 12.90" (328 mm) |
| Width | 6.9" (175 mm) |
| Height | 10.0" (254 mm) 10.8" (274 mm) w/terminals |
| Terminals | 5/16" Studs (HW included) & SAE Posts |
| Polarity | + Left / - Right |
| Weight | 91 lbs (41.3 kg) |
| Charging Current | 10 - 40 Amps |
| Charging Voltage | 14.6V - 14.9V |
| Float Voltage | 13.6V - 13.8V |
| Float Service Life | 10 - 12 Years |
| Warranty | 1 Year |
XTR12-155 Battery Cross-Reference
12 Volt GC12 Batteries: CT3500H, MB147-155, MR147-155, SLR155, XTR12-155.
Important: Always confirm your battery's electrical specifications, dimensions, and terminal configuration before purchase.
