Product Description
Group 31 AGM Deep Cycle Battery
The VMAX MB137-120 12V deep cycle battery delivers true AGM performance with a 120Ah capacity for golf carts and commercial equipment requiring Group 31 batteries that can supply strong, steady power for extended periods. Engineered using VMAX’s military-grade AGM construction, the MB137-120 features thick internal plates, premium glass mat separators, and a sealed, maintenance-free design—providing both high output, and durability that holds up in the toughest environments.
Features & Benefits
- 120Ah 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.
- Group 31 – Direct-fit replacement for a wide range of golf carts and commercial equipment.
- Low Self-Discharge – Maintains a charge longer between uses than conventional flooded batteries.
- Temperature Tolerant – Dependable starting power in both high and low temperatures.
- 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 AGM Equipment Batteries
VMAX MB Series deep cycle batteries are engineered for applications that demand consistent, lasting 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 tough environments – from golf carts & mobility scooters, to medical & commercial equipment. You get rugged construction, long runtime, and maintenance-free reliability in a single battery that handles long power draws and sustained cycling.
Bulk Pricing on VMAX MB137-120 Batteries
2-3 — $10.00 Off Each
4-8 — $15.00 Off Each
9+ — $20.00 Off Each
Automatically calculated in Shopping Cart
| Nominal Voltage | 12 Volts |
| Capacity | 120Ah |
| Type | Deep-Cycle AGM |
| Cold Cranking Amps | 720 Amps |
| Hot Cranking Amps |
900 Amps |
| 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 (hardware incl.) |
| Polarity | + Left / - Right |
| Weight | 74 lbs (33.6 kg) |
| Charging Current | 8 - 35 Amps |
| Charging Voltage | 14.4V - 14.9V |
| Float Voltage | 13.5V - 13.8V |
| Warranty | 1 Year |
VMAX MB137-120 Battery Cross-Reference
Group 31 Batteries w/Studs or Bolt Terminals: 0400122, 15020258, 31-AGM-MT, 31M, 31M-AGM, 31MDP, 31‑PC2150S, 7T31, 7T31P, 8231, 8272, 8A31DTM (Deka), 8A31DTM (P1), 8G31, 8G31DTM, 91083483, 9831DT, AGM31DT, CT2500, D31M, DB8A31DTM, 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, SLR125, SRM-31, US 31DC XC2, US AGM 31, XCA31-1400, XTR31-135.
Important: Always confirm your battery's dimensions, terminal configuration, and specifications before purchase to ensure proper fit and performance.
Recommended Chargers for the MB137-120
VMAX 15A Battery Charger & Maintainer
VMAX 20A Battery Charger & Maintainer