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Monster Marine 36V 40Ah

Monster Marine 36V 40Ah

  • Brand: Monster Marine
  • Product Code: MML-3640B
  • Availability: Call for Availability
  • $899.00

Available Options

  - OR -  

BLUETOOTH MODEL - 36v 40Ah Lithium Trolling Motor Battery

Meet The Ironhorse — built for those who demand reliable power in a compact, ultra-light design.

This 36V 40Ah Bluetooth Lithium Battery delivers steady, efficient energy for your trolling motor while keeping your setup light and streamlined.


At just 33 lbs, The Ironhorse weighs nearly 60% less than a single SLA battery, freeing up valuable space and improving boat balance.

With advanced Lithium Iron Phosphate (LiFePO₄) technology, it provides consistent power output, longer life, and faster recharge times — ensuring peak performance, every trip.


One Battery, Triple the Output

Replaces three 12V batteries — saving space, simplifying wiring, and reducing overall boat weight.


Integrated Bluetooth Monitoring

Track real-time voltage, current, capacity, and battery health directly from your smartphone via the MMLithium app.


Lightweight, Heavy-Duty Power

Power that weighs less — dramatically lighter than lead-acid with more muscle in every amp.


LiFePO₄ Technology

Provides double the usable power, four times the cycle life, and consistent voltage output from start to finish.


Expandable Power

Easily connect a second in parallel (positive to positive, negative to negative) to double capacity.


Plug-and-Play Installation

Connect your trolling motor directly to the battery — no complex setup required.


Specifications

  • Weight: 33 lbs (23.1Kg).
  • Size Dimensions: L 13 in (330mm) x W 6.8in (173mm)  x H 8.5 in (225mm)
  • Voltage:  38.4V
  • Energy: 1536 Watts (Wh)
  • Amp-Hours: 40Ah 
  • Charge Volts: 43.8v
  • Continuous Amps: 100A max
  • Terminals: M8 brass bolt
  • Bluetooth: Yes


Suitable for:

  • 36v trolling motors
  • Connect in parallel for 100Ah capacity
  • LiFePO4 replacement for (3) SLA 12v
  • Ideal for Minn Kota Trolling Motors
  • Ideal for Garmin Trolling Motors
  • Ideal for Lowrance Trolling Motors
  • Ideal for Rhodan Trolling Motors
  • Ideal for ALL Trolling Motors
  • Over 4000+ Charge cycles

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