Monster Marine Lithium | 36V 50Ah Trolling Battery Bluetooth MML-3650BT
36V 50Ah Trolling Battery Bluetooth | MML-3650BT
Lightweight. Powerful. Smart.
The MML-3650BT is the ultimate power upgrade for serious anglers and outdoor enthusiasts. Designed for 36V trolling motors, this Bluetooth-enabled lithium battery lets you monitor your charge status directly from your smartphone—no guessing, just real-time insights.
Weighing just 34 lbs, this battery replaces three 12V lead-acid or gel marine batteries, cutting down your load by over 150 lbs. Housed in a standard Group 31 case, it's a direct drop-in replacement—no special adjustments needed.
Built with advanced Lithium Iron Phosphate (LiFePO4) technology, it offers twice the power, a fraction of the weight, and a lifespan of 4000+ cycles, making it a high-efficiency, long-term solution.
Looking for more runtime? Easily wire a second battery in parallel (positive to positive, negative to negative) to increase total capacity to 100Ah.
Key Features
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36V 50Ah deep cycle capacity
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Bluetooth monitoring via iOS & Android apps
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Weighs just 34 lbs
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Replaces (3) SLA 12V batteries
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Group 31 case for drop-in fit
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4000+ charge cycles
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LiFePO4 chemistry: Safe, efficient, and long-lasting
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Parallel capable: Connect two for 100Ah total capacity
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Plug-and-play installation
Ideal For
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36V trolling motors
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Minn Kota, Garmin, Lowrance, Rhodan, and more
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Anglers requiring lightweight, high-performance power
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Anyone replacing bulky SLA batteries
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Reliable marine setups needing long runtimes
Specification
Weight
34 lbs (16.7Kg). 50% lighter than 1 SLA battery!
Size Dimensions
L 13 in (330mm) x W 6.77in (172mm) x H 8.5 in (228mm)
Voltage
38.4V
Energy
1920 Watts (Wh)
Amp-Hours
50Ah
Charge Volts
43.8v
Max charge current 50A
Continuous Discharge Amps
100A max
Terminals
M8 stainless bolt
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Yes! All products on Solar Guys Pro are 100% brand-new and in perfect condition.
We do not sell any used or refurbished items.
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Frequently Asked Questions
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