Monster Marine Lithium | 12v 18Ah Deep Cycle Lithium Marine Battery "Hornet"
12v 18Ah Deep Cycle Lithium Marine Battery "Hornet"
Lightweight Power. Built to Last. Perfect for All 12V Outdoor Applications.
The 12v 18Ah Deep Cycle Lithium Marine Battery "Hornet" by Monster Marine Lithium is the ultimate solution for anyone who needs long-lasting, lightweight, and efficient 12V power. Weighing just 4.9 lbs, this compact battery is built with premium LiFePO4 (Lithium Iron Phosphate) technology—delivering twice the power, one-fourth the weight, and up to 4x the lifespan of traditional sealed lead-acid batteries.
Designed for rugged use in the outdoors, it's ideal for ice fishing electronics, kayak setups, 12V sonar/GPS units, and more. With over 4000 charge cycles, the Hornet offers long-term reliability and flexible use in series or parallel setups.
Key Features:
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Only 4.9 lbs – Ultra-Light & Portable
Easy to carry, install, and move—ideal for compact boats and mobile setups. -
High-Efficiency LiFePO4 Power
Clean, steady voltage that outperforms and outlasts SLA batteries. -
Versatile & Expandable
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Connect in series (up to 4) for 24V, 36V, or 48V systems
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Connect in parallel for expanded amp-hour capacity
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4000+ Charge Cycles
Long-lasting power for year-round use in all conditions. -
Safe & Maintenance-Free
Built-in protection circuitry ensures safe operation and zero upkeep.
Compatible Chargers:
This battery is compatible with AGM mode chargers, including:
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Minn Kota (Precision & Digital)
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Dual Pro
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NOCO
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Real Pro
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Pro Sport
Note: Charger must support AGM charging to safely charge this lithium battery.
Specification
Weight
4.9 lbs (2.2Kg)
Size Dimensions
L 7 in (180mm) x W 3 in (76mm) x H 6.5 in (165mm)
Voltage
12.8V
Energy
231 Watts (Wh)
Amp-Hours
18Ah
Charge Volts
14.6v
Continuous Amps
30A max
Terminals
M6 Stainless (post that screw in).
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We do not sell any used or refurbished items.
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Frequently Asked Questions
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