E3 Lithium Marine is the smallest, lightest, most powerful and most shock resistant battery available today. Featuring a waterproof carbon fiber case, E3 Lithium Marine batteries have been torture tested in the extreme conditions of offshore powerboat racing.

E3 Lithium Marine Batteries can fire 1500+ horsepower race motors in a package half as big and nearly one tenth of the weight of traditional marine batteries. The batteries exceedingly light weight, just 8.9 lbs, can improve fuel consumption and top end speed. For example, a typical offshore powerboat that runs three Group 31 sized batteries can reduce its dry weight by over 150 pounds simply by switching to E3! That's a whole person!

Boasting a whopping 1600 Cranking Amps, the battery offers 32 Amp Hours of capacity. Its unique fault light indicator, which can be hardwired into a helm mounted warning light, allows you to keep tabs on the performance of your battery. Some of the performance benefits include:

80% Lighter than traditional batteries
3x Longer life than traditional batteries
Shock Resistance: rated to withstand 20 Gs
Charges faster than traditional batteries
Delivers much quicker starts than traditional batteries
IP 68 Environmental Rating (waterproof)
Remote mounted fault light indicator
Carbon Fiber case
Centered terminals allow mounting in any position
Environmentally friendly
5 Year Warranty (see warranty page for details)

This battery offers a built-in Double Redundant Battery Management System. This system offers the following attributes to ensure years of trouble-free power delivery from your E3 Lithium Marine Battery.

Over-Charge Protection
Over-Discharge Protection
Short Circuit Protection (up to 1,000 amps)
Excessive Cranking Protection
Built In Cell Balancing Technology

Brass terminals adapters are included.

NOTE: A lithium compatible battery charger is required in order to properly and safely charge your E3 Lithium Marine Battery. We recommend OptiMate Lithium Chargers which you can purchase buy cliking the following link:

All E3 Lithium Batteries are designed, engineered and manufactured right here in the USA using imported lithium cells.

Lithium Batteries

E3.420 - Marine Lithium Battery