Marine Batteries

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Interstate Marine Lead Acid 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.

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

Interstate Marine Lithium Deep Cycle Batteries

Interstate lithium deep cycle batteries are designed to deliver maximum power and consistent performance, making them perfect for boating. While lithium batteries may have a higher upfront cost, their long lifespan, efficiency and reliability make them a smart, cost-effective investment for boaters.

Part Number	MSRP USD	Group Size	RC	Ah	Length	Width	Height	Weight	Voltage	Wet/Dry
LI24M12V60	$599.95	24M	135	60	10 1/4	6 5/8	8 3/16	15.400	12	D
LI27M12V100	$799.95	27M	225	100	12 1/16	6 5/8	8 3/16	26.904	12	D
LI31M24V60	$1,099.95	31M	135	60	13	6 3/4	8 7/16	28.701	24	D
LI31M36V50	$1,199.95	31M	114	50	13	6 3/4	8 7/16	33.000	36	D

New Lithium Battery Technology from Interstate^®

Key features of Interstate lithium marine batteries:

MORE CYCLE LIFE
Lasts up to 10X longer
than AGM batteries

LIGHTWEIGHT
Less than half the weight
of regular batteries

FASTER RECHARGE
Recharges up to 3X faster
than regular batteries

HIGHER USEABLE CAPACITY
Can use 100% of
its available capacity

CONSISTENT PERFORMANCE
Maintains consistent performance
throughout the entire discharge

MAINTENANCE FREE
Contains no battery acid
and is noncorrosive

10-YEAR LIMITED WARRANTY
Lithium Deep Cycle Battery
10-Year Limited Warranty

IPX-7 PROTECTION
Safe against water immersion
up to 1 meter for 30 minutes

Feature	Flooded Lead Acid	AGM	Interstate LiFeP04
Cycle Life	70-100 Cycles	100-250 Cycles	> 2,500 Cycles
Lifespan	2-3 Yrs	3-4 Yrs	10+ Yrs
Weight (100Ah)	60 lbs	65 lbs	27 lbs^*
Useable Capacity	50%	50%	100%
Rechargeability	Standard	Standard	Up to 3x Faster
Continuous Discharge Current	No	No	Yes
Self-Discharge Rate	Standard	Standard	Excellent
Corrosive	Yes	Yes	No
Spillable	Yes	No	No
Maintenance Free	No	Yes	Yes
			*Approximate weight using 100 Ah battery