Lithium ion marine batteries

A drop in Replacement and Upgrade from Lead Acid, AGM or Gel Batteries.

Smart Battery® marine lithium batteries are the industry's predominant choice for dual purpose - starting and deep cycle lithium marine batteries.

Our 12V lithium marine batteries come with a Limited Lifetime Warranty and are reliable in all marine battery applications from luxury yachts to fishing boats. Over 15,000 Smart Battery® lithium batteries have been widely used for the past several years in commercial, military and consumer applications around the world. Our lithium batteries have less than a 1% failure rate making Smart Battery® the preferred choice for businesses and individuals looking for dependable lithium batteries.

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Marine Lithium Batteries

Plug & Play

Simply Connect your battery cables and you're ready to go. Every Smart Battery has a built in battery protection system keeping it running at peak performance for thousands of cycles.

 

Modular

Smart Battery lithium ion batteries can be connected in series or in parallel. Our internal battery protection system requires zero maintenance for the life of the battery. 

 
 

Built in Battery Protection

Every Smart Battery® comes with a built in Battery Protection System (BPS) that optimizes the cells and provides maximum safety and dependability at sea. 

 

70% Lighter than Lead

Yachts with large battery banks can typically reduce 70% of their weight and use around 1/3 of the space required for the same amount of power as their lead bank.

 

100% Depth of Discharge (DOD)

Safely use 100% DOD (depth of discharge) meaning you can expect to nearly double your capacity when comparing to the same size lead acid, gel or AGM battery.

 
 

Long Life 3000 - 5000 Cycles

Our lithium batteries will provide you with 100% depth of discharge for over 2000 cycles. After 2000 cycles, the battery will still have 80% of its rated capacity.

 
 

SAME DAY SHIPPING 

On in stock items ordered before 3:00pm EST. Need it tomorrow? Overnight shipping available.

|  MARINE LITHIUM BATTERIES  |  DEEP CYCLE & STARTING

 


12V 35AH Lithium Ion Marine Battery

12V 35AH LITHIUM MARINE BATTERY

10 lbs.

IN STOCK  |  FREE SHIPPING

$449.99

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12V 40AH Lithium Ion Marine Battery

12V 40AH LITHIUM MARINE BATTERY

13 lbs.

SPECIAL ORDER  |  FREE SHIPPING

$579.99

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12V 50AH Lithium Ion Marine Battery

12V 50AH LITHIUM MARINE BATTERY

15 lbs.

IN STOCK  |  FREE SHIPPING

$689.99

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12V 75AH Lithium Ion Marine Battery

12V 75AH LITHIUM MARINE BATTERY

Group 24  -  25 lbs.

IN STOCK  |  FREE SHIPPING

$999.99

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12V 80AH Lithium Ion Marine Battery

12V 80AH LITHIUM MARINE BATTERY

Group 27  -  28 lbs.

SPECIAL ORDER  |  FREE SHIPPING

$1,049.99

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12V 100AH Lithium Ion Marine Battery

12V 100AH LITHIUM MARINE BATTERY

Group 31  -  30 lbs.

IN STOCK  |  FREE SHIPPING

MOST POPULAR

$1,299.99

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12V 150AH Lithium Ion Battery

12V 150AH LITHIUM MARINE BATTERY

Group 4D  -  49 lbs.

SPECIAL ORDER  |  FREE SHIPPING

$1,899.99

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12V 3000AH Lithium Ion Battery

12V 300AH LITHIUM MARINE BATTERY

Group 8D  -  93 lbs.

SPECIAL ORDER  |  FREE SHIPPING

$3,499.99

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View our full line of 12V Lithium Batteries.
Smart Battery offers a wide range of 12V Lithium batteries that can be combined in series or in parallel. 

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| MARINE LITHIUM BATTERY CHARGERS

 

We offer chargers from the industries leading charger manufacturers. Smart Battery® Lithium Ion Battery Chargers are programmed specifically for our batteries. 

 
12V 15A Lithium Ion Battery Charger

12V 15A LITHIUM ION BATTERY CHARGER

$235.99

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12V 2 Bank 15A Lithium Ion Battery Charger

12V 2 BANK LITHIUM ION BATTERY CHARGER

$364.99

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