The MML-1280B battery is in a group 24 case for easy installation. Built with Lithium Iron Phosphate (LiFePO4) technology and bluetooth monitoring via our IOS & Android app, this battery has twice the power, a fraction of the weight, and lasts 4 times longer than a sealed lead acid battery. Installation is...

The MML-12120B has a advanced bluetooth technology to view your battery voltage and capacity right from your smartphone. Not only will it save you room but it also cuts your weight by about 60%! The MML-12120B battery is in a group 31 case so it will fit right where your...

The question we get asked often is will it work with my engine? Of course! Mercury pro xs 4 stroke, Yamaha 4 stroke & sho 4 stroke both older and newer as well as Yamaha hpdi, Mercury Verado 4 strokes, Suzuki 4 stroke, evinrude 2 stroke, Mercury pro xs 2...

 The largest single 24v battery on the market with a group 31 footprint! This ONE battery can replace TWO regular marine gel/acid batteries! This MML-2480B has bluetooth functionality so you can view your battery capacity via bluetooth app. Not only will it save you room but it also shaves off...

Lightweight 36V trolling motor power solution ONE battery replaces THREE regular marine gel/acid batteries, saving space and weight Bluetooth functionality for easy capacity monitoring via app Weighs only 33 lbs, shaving off an estimated 150 lbs Group 31 case fits seamlessly into existing setup Lithium Iron Phosphate (LiFePO4) technology for...

 The MML-3650BT battery is in a group 31 case 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...

 The Monster Marine 36v 65ah  battery is in a group 31 case just 1/2 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...

The Monste Marine 73ah 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...

36V trolling motor power solution ONE battery replaces THREE regular marine gel/acid batteries, saving space and weight Bluetooth functionality for easy capacity monitoring via app Weighs only 59 lbs, shaving off an estimated 150 lb Lithium Iron Phosphate (LiFePO4) technology for double the power, fraction of the weight, and four...

The Monster Marine charger has Bank 1 for 12v 10A lithium batteries and Bank 2 is 24v 10A for single 24v lithium batteries! Even when running 2 of our 24v batteries in parallel this one charger will charge both at the same time! This charger is 100% waterproof and can...

Monster Marine  Dual charger has Bank 1 for 12v 10A lithium or AGM batteries and Bank 2 is 36v 10A for single 36v lithium batteries! Even when running 2 of our 36v batteries in parallel this one charger will charge both at the same time! This charger is 100% waterproof...

The Dynamic Charge System is Monster Marine Lithium's new charging system that is custom designed, custom built, & with thousands of hours of on the water testing it is built to become the best charging system in your boat.   The Dynamic Charge offers:   - Dual simultaneous charging: charging...