Marine Batteries

Interstate Marine Deep-Cycle Batteries

Designed to provide reliable power over an extended period, our deep cycle batteries are ideal for powering your boat and all of its accessories, whether your engine is running or not. Our new Marine EFB batteries come with a 24-month free replacement warranty. Browse the lineup below or try our battery wizard to get a product recommendation for your application.

Learn More about new Marine EFB Batteries

Select a battery option:

Part Number	MSRP USD	Group Size The physical dimensions of a battery.	CCA Cold cranking amps start your car. If this number meets or exceeds your vehicle’s needs, you’re good to go.	CA Cranking amps are measured at warm temperatures to show what a battery can deliver under ideal conditions. CCA indicates performance under harsher conditions.	RC Reserve capacity is the steady power your battery provides the electrical system when the alternator is not operating.	Ah Ampere hour measures the battery’s capacity and indicates how much energy can be stored by the battery.	Length	Width	Height	Weight	Voltage	Wet/Dry
24M-EFB	$209.95	24M	590	700	140	77	10 1/4	6 13/16	8 11/16	45.7	12	W
27M-EFB	$214.95	27M	675	800	160	90	12 3/4	6 3/4	9 1/2	50.9	12	W
SRM-24	$154.95	24M	550	690	140	81	11	6 7/8	9	46.3	12	W
SRM-27	$164.95	27M	600	750	160	88	12 3/4	6 7/8	9	50.3	12	W
SRM-31	$189.95	31M	675	845	210	98	13	6 3/4	9 5/8	59.7	12	W
SRM-4D	$354.95	4DM	1314	1645	390	195	21	8 1/4	9 5/8	117.0	12	W

New Marine Enhanced Flooded Battery Technology from Interstate^®

Image of boat in water with Interstate Marine Deep Cycle Battery

Power Beyond The Ordinary

Spend more time on the water. The Interstate^® EFB provides the tough, long-lasting, deep cycles needed to power boating accessories like trolling motors, fish finders, sound systems and more.

EFB Features and Benefits

ADVANCED EFB TECHNOLOGY, ACCESSORY POWER, TWO-YEAR FREE REPLACEMENT WARRANTY, MAINTENANCE FREE, TROLLING POWER

Get twice the cycle life at a great value with Interstate enhanced flooded marine batteries.

Life cycle chart showing longer runtime of enhanced flooded battery verses traditional flooded battery

2x Cycle Life. Great Value.

EFB batteries provide up to two times more cycle life than standard flooded batteries.

Finding Your Batteries

Marine Batteries

Interstate Marine Deep-Cycle Batteries

New Marine Enhanced Flooded Battery Technology from Interstate®

Power Beyond The Ordinary

2x Cycle Life. Great Value.

New Marine Enhanced Flooded Battery Technology from Interstate^®