The Lion SMF DCM31 Deep Cycle Battery delivers dependable 12V power for marine, caravan and recreational applications. Featuring sealed maintenance-free calcium/calcium technology, this 120Ah dual-purpose battery combines powerful 800CCA engine starting performance with reliable deep cycle capability. Its heavy-duty construction, vibration resistance and dual-terminal configuration make it ideal for boats, 4WDs, camper trailers and auxiliary electrical systems requiring consistent starting and accessory power.
Lion Marine Batteries
Lion SMF DCM31 Battery – 12V 120Ah 800CCA Deep Cycle Marine Battery
Brand: Lion Batteries
SKU: LB-SMFDCM31
$357.00
Key benefits
Key Benefits
- - 120Ah capacity for extended accessory power.
- - 800CCA for dependable engine starting.
- - Dual-purpose starting and deep cycle capability.
- - Sealed maintenance-free construction.
- - Calcium/calcium technology for reliable performance.
- - Dual-terminal configuration for starting and accessories.
- - Anti-vibration construction for demanding applications.
- - Suitable for marine, caravan and 4WD installations.
- - Designed for repeated charging and discharging.
Specifications & Dimensions
- - Brand: Lion Batteries
- - Product Range: Lion SMF Deep Cycle Dual Purpose
- - Part Number: SMFDCM31 / SMF DCM 31
- - Battery Type: D87
- - Battery Technology: Calcium/Calcium Lead Acid
- - Construction: Sealed Maintenance Free (SMF)
- - Application: Dual Purpose – Starting & Deep Cycle
- - Nominal Voltage: 12V DC
- - Battery Capacity: 120Ah (20-hour rate)
- - Cold Cranking Amps (CCA): 800A at -18°C
- - Length: 332mm (13.07")
- - Width: 174mm (6.85")
- - Height: 243mm (9.57")
- - Weight: 28kg (61.73lb)
- - Terminal Type: A – Dual terminal configuration
- - Battery Assembly: D
- - Manufacturer Listed Warranty: 12 months
Compatible Applications
- Marine Applications
- - Recreational fishing boats.
- - Trailer boats and runabouts.
- - Cabin cruisers with compatible battery systems.
- - Outboard engine starting systems requiring up to 800CCA.
- - Inboard engine starting systems with suitable electrical requirements.
- - Marine auxiliary and dual-battery installations.
- - Fish finders, GPS and navigation electronics.
- - Marine lighting and onboard electrical accessories.
- - Compatible electric trolling motor installations.
Caravan & Recreational Applications
- - Caravans and camper trailers.
- - Camping auxiliary power systems.
- - 4WD dual-battery installations.
- - Recreational vehicles and motorhomes.
- - Portable 12V recreational equipment.
- - Camping lighting and electrical accessories.
General Electrical Applications
- - 12V auxiliary power systems.
- - Compatible solar charging installations.
- - Emergency and backup power systems.
- - Equipment requiring a 120Ah lead-acid deep cycle battery.
Important Fitment Information
- - Confirm the electrical system requires a 12V battery.
- - Check the available battery compartment dimensions.
- - Verify terminal polarity and battery assembly before installation.
- - Ensure the engine manufacturer's minimum CCA requirement does not exceed 800CCA.
- - Use a charging system compatible with calcium/calcium lead-acid batteries.
- - Suitable for starting and auxiliary power, subject to electrical load requirements.
- - Secure the battery using an appropriate marine battery tray or battery box.
- - Protect terminals against corrosion and accidental short circuits.
- - This is a sealed maintenance-free flooded lead-acid battery, not an AGM or lithium battery.
- - For regular deep cycling, avoid excessive discharge to help maximise battery service life.
Signs the Battery Needs Replacing
- - Slow or difficult engine cranking.
- - Reduced operating time for onboard accessories.
- - Battery repeatedly losing charge.
- - Excessive voltage drop under load.
- - Electrical equipment operating intermittently.
- - Swollen, cracked or damaged battery casing.
- - Corroded or deteriorated battery terminals.
- - Battery fails a load or capacity test.
Shipping
Ships Australia-wide