Power your adventures with the Vmax MR147-155, a high-performance 12V AGM deep-cycle battery in Group Size GC12 with 155Ah. Designed for marine use, including boats and trolling motors, this maintenance-free battery provides reliable power for long fishing trips and extended time on the water.
Beyond marine applications, the Vmax MR147-155 is also ideal for off-grid solar power systems, RV energy storage, electric vehicles, and backup power. Offering exceptional longevity, high discharge rates, and unmatched reliability, this battery is built to deliver dependable energy in any environment.
Stay powered for hours on the open water or off the grid with the Vmax MR147-155, your ultimate choice for reliable, long-lasting energy.
1-Year Manufacturer's Replacement Warranty.
BCI GROUP: GC12
Specifications:
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Nominal Voltage: 12V
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20Hr Capacity: 155Ah
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Reserve Capacity (RC): 305 minutes
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HCA (Hot Cranking Amps): 2200A
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MCA (Marine Cranking Amps): 1150A
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Terminal Posts: 8mm (included)
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Dimensions: 13.5" (W) x 6.8" (D) x 11.3" (H)
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Weight: 90 lbs
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Charging Current: 10A - 35A
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Charging Voltage (Bulk): 14.4V - 14.9V
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Float Voltage: 13.5V - 13.8V
Recommended Charging Options:
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AC Chargers: Any quality AGM smart & microprocessor-controlled charger with the recommended specs.
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Alternator: 14V-15V
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Solar Panel: 225W-500W (150W may be used if Depth of Discharge does not exceed 50%)
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Charge Controller: 20A or higher
Warning: Do not use a charger with a lower amperage than the recommended charging current shown above. Small maintainers should ONLY be used to maintain a fully charged battery, NEVER as a charger.
Operating Temperature Range:
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Discharge: -4°F to 140°F
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Charge: 14°F to 140°F
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Storage: -4°F to 140°F
Temperature Compensation:
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Cycle Use: -30mV/°C per cell
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Standby Use: -20mV/°C per cell
All VMAXTANKS AGM Batteries Feature:
- Sealed Construction
The unique construction and sealing techniques of VMAX tanks guarantee leak-proof operation in any position with no adverse effect on capacity or service life. VMAX tanks are classified as non-spillable, non-hazardous, dry batteries, making them NOT restricted for Surface, maritime, or Air Transport.
- Electrolyte Suspension system
VMAX tanks utilize an electrolyte suspension system consisting of AGM (Absorbed Glass Matt) of high porosity that totally absorbs and contains the electrolyte. No silica gels or other contaminants are used.
- Maintenance Free Operation
During the float's service life, there is no need to check the electrolyte's specific gravity or add water to VMAXTANKS™.
- Reliable, Rugged Construction
The extra strong ABS container reduces case bulging and plate warping, ensuring long life and high performance.
- Low-Pressure Valve Regulated System
All VMAXTANKS™ are equipped with safety release valves, designed to operate between 0.98 and 196.1kpa and automatically reseal. Hence, there is never an excessive accumulation of gas within the battery.
- Heavy Duty Military Grade Grids
Heavy-duty lead tin alloy grids provide an extra margin of performance and service life in either float or cyclic applications, even after repeated over-discharges.
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Cyclic Service Life
VMAX is known to deliver one of the highest numbers of discharge/recharge cycles. Depending on the use and average depth of discharge, it can offer an average of:
| Number Of Cycles |
Depth of Discharge |
| 300 |
100% |
| 600 |
75% |
| 900 |
50% |
| 1500 |
25% |
| 3500+ |
10% |
- Float Service Life
VMAXTANKS™ has an expected life span of 8 to 10 years in float service applications.
- Low Self Discharge
The new VMAX tanks' self-discharge rate at room temperature is approximately 1-2% of rated capacity per month (compared to 2-3% for most other AGM batteries and 15-20% for Lead-Acid batteries).
- Operating Temperature
VMAXTANKS™ may be operated over a broad range of ambient temperatures.
- Ultra Low Resistance
VMAXTANKS™ Ultra Low Resistance makes it up to 99% efficient (compared to 85-95% as in Lead Acid Batteries and 97% in most other GEL and AGM batteries).
- Higher Power Density
A special assembly technology is used to enhance power density to a considerable level.
