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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.

Part Number Group Size Cold Cranking Amps (CCA) Cranking Amps (CA) Reserve Capacity (RC) Amp Hours (Ah) Length Width Height Weight Voltage Wet/Dry
24M-EFB 24M 590 700 140 77 10 1/4 6 13/16 8 11/16 45.7 12 W
27M-EFB 27M 675 800 160 90 12 3/4 6 3/4 9 1/2 50.7 12 W
SRM-24 24M 550 690 140 81 11 6 7/8 9 46.3 12 W
SRM-27 27DC 600 750 160 88 12 3/4 6 7/8 9 50.3 12 W
SRM-31 31M 675 845 210 98 13 6 3/4 9 5/8 59.7 12 W
SRM-4D 4DM 1314 1645 390 195 21 8 1/4 9 5/8 117 12 W

New Marine Enhanced Flooded Battery Technology from Interstate®

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.

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

EFB Features And Benefits

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.

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