Memorial Day Sale! Save an extra 5% on 12v 50, 100 & 125ah Ionic Lithium Batteries! No code needed! Or Save 15% off your entire* order! Use Promo Code: HFG15 at checkout! Plus Free Shipping on all orders over $50! *Discounts can't be combined. HFG15 Excludes Battery Products & Prym1

36v 73ah Monster Marine Lithium Battery

36V 73Ah Lithium Trolling Battery MML-3673B "Titan"

Regular price
Sale price
Regular price
Sold out
Unit price
Shipping calculated at checkout.

Are you looking for a lightweight battery to power your 36V trolling motor? Well look no further this is it! Weighing in at only 51 lbs, this ONE battery can replace THREE regular marine gel/acid batteries! Not only will it save you room but it also shaves off an estimated 150lbs or more! The MML-3673B battery is in a group 31 case just 1 inch taller so it will fit right where your old batteries previously sat! Built with Lithium Iron Phosphate (LiFePO4) technology this battery has twice the power, a fraction of the weight, and lasts 4 times longer than a sealed lead acid battery. If you're fishing heavy current and needing extra capacity or just simply want the extra juice another 36v battery can be wired in parallel (positive to positive & negative to negative) to increase the amp hour capacity to 146Ah! Installation is as easy as attaching the main positive of the trolling motor to the positive post of the battery and the main negative of the trolling motor to the negative post of the battery. Very simple plug ang play!

  • Specifications


    51 lbs (23.1Kg).

    Size Dimensions:

    L 13 in (330mm) x W 6.77in (172mm)  x H 9.5 in (241mm)




    2803 Watts (Wh)



    Charge Volts:


    Continous Amps:

    100A max


    F12 terminals (post that screw in) M8 bolt. 

    Battery Tray

    Fits Universal 12V Group 27, 29, & 31 Single Battery Tray


    • Suitable For

      • 36v trolling motors
      • Connect in parallel for 146Ah 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
      • Bluetooth compatible