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MSDP31 Exide Marine Dual Purpose Battery
MSDP31 Exide Marine Dual Purpose Battery
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Technical Specifications
| Specification | Details |
|---|---|
| Model | Exide Stowaway Marine MSDP31 |
| Voltage | 12V |
| Capacity | 120 Ah (20HR) | 240 min RC |
| Cold Cranking Amps (CCA) | 830 CCA (SAE) |
| Dimensions (LWH) | 330 x 172 x 218 mm (Total Height: 242 mm) |
| Weight | 24.00 kg |
| Terminal & Ledge Type | DST (Dual Automotive & Stud) | FL Ledge | Assembly H |
The Exide Stowaway Marine MSDP31 Dual Purpose Battery delivers an elite, heavy-duty power solution specifically engineered for boats utilising a single battery bank for both engine starting and accessory cycling. Built with premium Sealed Maintenance-Free (SMF) Calcium technology, this robust Group 31 marine battery unleashes a massive 830 Cold Cranking Amps (CCA) alongside an extraordinary 240-minute reserve capacity. By combining thicker plates, high-grade glass mat separators, and a specialised active material formula, it masterfully bridges the gap between raw cranking authority and deep-cycle stamina to effortlessly support onboard chartplotters, fridges, audio systems, and fishfinders.
Perfect for boaters who demand:
- ✓ A true one-battery solution capable of firing up large marine engines and maintaining house accessories
- ✓ Industrial-grade vibration resistance engineered to withstand rough ocean swells and high-speed hull pounding
- ✓ Clean, hassle-free dual-terminal connection layout for streamlined, spark-free accessory wiring
Key Features & Benefits
No-Vibe Anchor Bonding
- • Internal plate structures are locked down using heavy-duty anchor bonding technology
- • Drastically reduces grid shedding and plate breakage caused by continuous water slap
- • Maximises overall service durability inside demanding marine hulls and off-grid configurations
Thick Plate Dual-Purpose Matrix
- • Outfitted with thicker lead-calcium plate grids and custom-blended active cell materials
- • Provides a massive 120 Ah baseline with a 240-minute reserve capacity for extended accessory load draws
- • Delivers excellent deep discharge cycling recovery without sacrificing high 830 CCA cranking punch
Glass Mat Separators
- • Premium glass mat layers hold the active plate paste strictly in place under intense cycling loads
- • Lowers internal electrical resistance to support swift, efficient alternator recharge delivery
- • Proactively isolates internal cell elements to prevent micro short circuits on the water
DST Marine Terminals
- • Dual Twin terminal layout features standard tapered automotive posts plus threaded accessory studs
- • Permits clean, isolated wiring connections for primary engine leads and auxiliary 12V busbars
- • Sealed Maintenance-Free design eliminates dangerous liquid acid spills or corrosive terminal outgassing
Advantages & Considerations
Advantages
- ✓ Highly efficient dual-purpose matrix layout simplifies complex multi-battery boat wiring
- ✓ Substantial 120 Ah capacity delivers sustained off-grid energy for overnight stays
- ✓ Sure-grip integrated carry handles make transport over boat gunwales safe and comfortable
- ✓ Fully sealed SMF lid keeps cells balanced with zero water topping-up required
Considerations
- • True dual-purpose compromise; not a dedicated ultra-deep traction cell for continuous high-draw electric trolling motors
- • Substantial 24.00 kg mass requires a robust marine battery box and secure strap-downs
- • Features Assembly H layout profile; check cable reach and polarity orientation before finalising installation
Frequently Asked Questions
What is the lifespan of this battery?
In classic seasonal marine configurations, this battery typically achieves an operational life of 3 to 5 years. Total life parameters are heavily dictated by the depth of overnight discharge cycles, proper offseason charging practices, and storage care protocols.
Is this battery maintenance-free?
Yes, it is entirely maintenance-free. The advanced Lead-Calcium grid layout keeps cell outgassing locked down, ensuring internal electrolyte fluids remain perfectly balanced over the service life without manual water top-ups.
What applications is this battery compatible with?
This Group 31 footprint battery is specifically optimised for inboard and outboard commercial or leisure vessels, 4WD auxiliary battery trays, camper setups, and power configurations demanding a balanced starting/cycling energy blend.
How should I store this battery during the off-season?
Store the unit in a cool, dry location away from freezing conditions or direct sunlight. Bring it to a full 100% state of charge prior to storage; its high-purity Calcium grids keep the self-discharge rate remarkably low during extended idleness.
What is covered under the warranty?
This Stowaway Marine battery is fully backed by Exide’s multi-month consumer replacement warranty structure. This protects against unexpected terminal failure, casting defects, or factory structural assembly faults under standard operating marine conditions.
Battery Compatibility Guide
Direct Replacement Models
