Overview
Barron Equipment carries the Interstate SC27DM, a dual purpose AGM marine and RV battery built with OPTIMA spiral cell technology. Unlike standard flooded batteries that separate starting and deep cycle functions, the SC27DM handles both — delivering strong cranking power for engine starts and sustained deep cycle output for running onboard electronics, trolling motors, fish finders, lights, and appliances.
The spiral cell AGM design uses 99.99% pure lead plates wound into tightly packed cells, which gives this battery up to three times the service life and 15 times the vibration resistance of a traditional flooded marine battery. The result is a maintenance-free power source that performs reliably in rough water, on unpaved roads, and across demanding marine and recreational vehicle environments.
Specifications
- Part Number: SC27DM
- Group Size: 27M
- Voltage: 12V
- Cold Cranking Amps (CCA): 800
- Cranking Amps (CA): 1,000
- Reserve Capacity (RC): 140 minutes at 25 amps
- Dimensions: 12 3/16 in. L x 6 13/16 in. W x 8 3/4 in. H
- Weight: 54 lbs
- Terminal Type: Top post
- Technology: AGM (Absorbed Glass Mat) — OPTIMA Spiral Cell
- Maintenance: Maintenance-free — no water needed
- Warranty: 24-month free replacement
Dual Purpose: Starting and Deep Cycle in One Battery
Most marine setups require separate batteries — one for cranking the engine and another for running house loads. The SC27DM eliminates that complexity by serving both roles in a single unit. With 800 cold cranking amps, it delivers reliable engine starts in a range of temperatures. With 140 minutes of reserve capacity, it sustains power for fish finders, live wells, navigation systems, cabin lighting, and other accessories over extended use.
This dual purpose design is especially practical for boats and RVs with limited battery compartment space, or for owners who want to simplify their electrical system without sacrificing performance on either the starting or deep cycle side.
AGM Spiral Cell Advantages
The OPTIMA spiral cell construction provides several performance and handling advantages over conventional flooded lead-acid batteries. The sealed AGM design means the battery is maintenance-free — there is no electrolyte to check and no distilled water to add. It can be mounted in virtually any position without risk of acid leakage, which gives you more flexibility in tight engine compartments and custom installations.
The tightly wound spiral cells also resist vibration at 15 times the level of a standard flooded battery, making the SC27DM a strong choice for high-impact environments like rough water boating, off-road RV travel, and trailer-mounted applications where constant jarring can shorten the life of a conventional battery.
Applications
The SC27DM is designed for marine vessels and recreational vehicles that need both starting power and accessory power from a single battery. Common applications include bass boats, pontoon boats, center console fishing boats, cabin cruisers, travel trailers, fifth wheels, Class B and Class C motorhomes, and towable campers. It also works well in utility and fleet vehicles where vibration resistance and maintenance-free operation reduce downtime and service costs.