Product Description
SLR125 Group 31 Deep Cycle Battery
The VMAX SLR125 12V deep cycle battery delivers true AGM performance with a 125Ah capacity in a Group 31 case. It’s built for use in RV's, and off-grid energy storage applications that need lasting, steady power for extended periods of time.
Engineered using VMAX’s military-grade AGM construction, the SLR85 features thick internal plates, tightly packed separators, and a sealed, maintenance-free design. The result is excellent durability that holds up in the toughest environments.
Features & Benefits
- 125Ah 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.
- Vibration Resistance – Rugged construction that's ideal for RV, marine, and mobile environments.
- Low Self-Discharge – Maintains a charge longer between uses than conventional flooded batteries.
- Temperature Tolerant – Dependable power in both high and very low temperatures.
- Group 31 – Replacement or upgrade for many RV, marine, and off-grid applications.
- M8 Insert Terminals – Includes new hardware for quick installation and secure connections.
- Left-Positive Polarity – Verify your current battery's terminal locations before purchase.
- Built for Commercial Use – VMAX takes pride in building Tough Batteries for Tough Applications.
VMAX SLR Series AGM Batteries
VMAX SLR Series AGM batteries batteries designed to deliver dependable deep-cycle power, day in and day out. Constructed with military-grade lead plates and sealed AGM technology, these batteries deliver consistent performance with zero maintenance and extremely low self-discharge. They’re engineered to handle deep cycling, long standby periods, and heavy vibrations—making them ideal for solar systems, RV's, marine applications, and backup power.
Available in capacities from 50Ah to 200Ah, the SLR Series scales easily to match your power requirements without compromise. Whether you’re running off-grid or preparing for outages, VMAX SLR batteries hold their charge, cycle cleanly, and are built to perform—year after year.
| Voltage | 12V |
| Capacity | 125 Ah |
| Type | Deep-Cycle AGM |
| Group Size | 31 |
| Length | 12.90" (328 mm) |
| Width | 6.80" (173 mm) |
| Height | 8.50" (216 mm) 8.70" (221 mm) w/terminals |
| Terminals | M8 Inserts (HW included) |
| Polarity | + Left / - Right |
| Weight | 75 lbs |
| Charging Current | 8 - 35 Amps |
| Charging Voltage | 14.4V - 14.9V |
| Float Voltage | 13.5V - 13.8V |
| Warranty | 1 Year |
VMAX SLR125 Battery Cross-Reference
Group 31 Batteries w/Studs or Bolt Terminals: 31M, 31M-AGM, 31MDP, 31‑PC2150S, 8A31DTM, 8G31, 8G31DTM, CT2500, D31M, DC31DT, DP31CS, DP31DT, DURHR12-430C/FR-A, HEPPC2150T-M, NSB‑AGM31, NSB-AGM31M, ODX‑AGM31, ODX-AGM31M, MB137-120, MR137-120, PC2150M, SLI31AGMDP, SLI31AGMDPM, SLI31CS, SLI31DP, SLI31DTMAGMDC, SLI31MDC, SLI31MDP, SLI31PHP/SHP, 7T31, 7T31P, XCA31-1400, XTR12-155, XTR31-135.
Important: Always confirm your battery's electrical specifications, dimensions, and terminal configuration before purchase.
