The Monster Marine Lithium 36V 73Ah Battery is the ultimate lightweight solution for your 36V trolling motor needs. Weighing just 42 lbs, this single battery replaces three traditional marine gel/acid batteries, saving you over 150 lbs and significant space. Housed in a Group 31 case with a 1-inch taller design, it fits seamlessly into your existing setup. Built with Lithium Iron Phosphate (LiFePO4) technology, it delivers twice the power, a fraction of the weight, and 4x the lifespan of traditional sealed lead-acid batteries. For heavy current fishing or extended capacity, wire an additional battery in parallel for up to 146Ah. Featuring Bluetooth connectivity, you can monitor your battery’s charge and performance in real time via your smartphone. Installation is simple with its plug-and-play design.

SPECIFICATIONS

WARRANTY

WEIGHT

42 lbs

SIZE

13″ (L) x 6.77” (W) x 9.6” (H)

STORAGE CAPACITY

73 ampere hours (Ah). Monster Marine Lithium batteries deliver reliable, consistent power throughout the full 73Ah capacity. Unlike traditional SLA batteries, Monster Marine Lithium LiFePO4 batteries feature a flat voltage curve, ensuring steady power output as they discharge. This advanced design provides uniform performance, giving you dependable energy all the way to the last drop.

Bluetooth Capable

Yes

VOLTAGE

38.4V 

ENERGY

2803 Wh

TERMINALS

M8 Bolt

LIFECYCLES (BATTERY LIFESPAN)

Retains up to 80% capacity for 5,000 cycles under recommended conditions—far surpassing the 500 cycles of typical SLA batteries. Monster Marine Lithium batteries deliver exceptional longevity, reducing the cost per use to a fraction of traditional battery options.

OPERATING TEMPERATURE

Built for rugged and extreme conditions, Monster Marine Lithium batteries outperform SLA and other lithium options. With an optimal operating range from -20°F to +140°F and reliable performance down to -20°F, these batteries are designed to thrive in tough environments. Note: For best results, avoid charging below 32°F

DISCHARGE

100A max continuous discharge. The flat discharge voltage curve provides a 75% bigger capacity then a SLA 50Ah battery.

CHARGE

50a max, 43.8v recommended. PLEASE NOTE YOU MUST USE A 36V LITHIUM CHARGER. 

INCLUDES ACTIVE BMS PROTECTION

Equipped with an advanced circuit, this battery ensures cell balancing, low and high voltage cutoff, short circuit protection, and high-temperature protection. These features boost performance and significantly extend the battery's lifespan.

Unlock the Monster Marine Lithium Advantage

The Monster Marine Lithium 36V 73Ah Battery offers lightweight durability, Bluetooth monitoring, and LiFePO4 technology, replacing three batteries for ultimate trolling motor performance.

USD : 96.59