Skip to content
Free Ground Shipping On All Orders Over $100
Free Ground Shipping On All Orders Over $100!

Monster Marine Lithium 12V 344Ah Battery w/ Bluetooth

Original price $2,150 - Original price $2,150
Original price $2,150
$2,150 - $2,150
Current price $2,150

Often Purchased Together

When you're looking for something to fit your battery needs and you don't want to worry about running out, well look no further. Our Mammoth 12v 344Ah deep cycle battery is where Monster Marine Lithium has designed, tested, and built a battery like no one else. Built out of Lithium Iron Phosphate technology, using only Grade A cells, installing the most advanced BMS system on the market, and adding in our rugged internal construction. This battery is built to handle all the uses and conditions you have for it! With a 4000+ charge cycle rating it will last up to 10x longer than your typical SLA battery. Although we are marine battery specialist this battery is optimized to be used in: marine, RV's, Solar Energy, and electric vehicles such as Golf Carts.

Bluetooth functionality so you can view battery status via Bluetooth app!


5 Year Warranty



344 ampere hours (Ah). Monster Marine batteries provide consistent power for all 344 amp hours. LiFePO4 batteries have a flat voltage curve, which means they have a steady power output as the battery discharges. The power output will not dramatically drop like similar sized SLA batteries. You get all the juice down to the last drop.


4403 Watts (Wh)


13.5" L x 7.25" W x 9.75" H 

Custom battery tray required, LBS aluminum battery trays available on our website. 


61 lbs

F12 terminals (posts that screw in)


Over 4000+ Charge cycles. Monster Marine batteries last so long that the price per use is a fraction of traditional batteries.


150A max continuous discharge amps.


Charge volts 14.6V. A SLA charger may work, but will reduce performance and lifespan of the battery.


LiFePO4 charger sold separately, compatible chargers sold on our website.


This is a deep cycle 12v battery. Not designed for starting gasoline engines.

 Suitable For

  • All 12V electronics (preferred because of steady voltage)
  • 12V trolling motors
  • Connect up to 4 in series for 24, 36, or 48V 80Ah capacity
  • Connect in parallel for higher capacities
  • LiFePO4 replacement for 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
  • Golf Carts
  • RV's
  • Solar Energy

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare