MF50D SSB Deep‑Cycle Marine Battery – Genuine Dual‑Purpose Marine Power

The MF50D SSB Deep‑Cycle Marine Battery is engineered for marine users who need strong cranking power, deep‑cycle capability, and long‑term durability in harsh marine, 4WD, and heavy‑vehicle environments. Delivering 510CCA, 66Ah, and 140 minutes of reserve capacity, the MF50D is a true dual‑purpose battery — capable of starting engines AND powering onboard accessories for extended periods.

Unlike standard starting batteries, the MF50D is built using extra thick plates, denser active material, and Cast Calcium‑Calcium Maintenance‑Free Technology, allowing it to deep‑cycle repeatedly without damaging its lifespan. This makes it ideal for boats, caravans, 4WD setups, and marine electrical systems that demand both starting strength and accessory endurance.

The MF50D is factory‑filled, heat‑sealed, and maintenance‑free. No topping up, no water checks, and no corrosion issues. Its rugged construction is designed to withstand vibration, pounding seas, moisture, and temperature extremes. With twin marine terminals and a built‑in charge indicator, the MF50D provides reliable marine power with minimal maintenance.

Warranty

The MF50D includes a Marine Warranty (refer to manufacturer warranty guide).

Battery Now NSW provides mobile marine battery replacement across Sydney, including testing, installation, and old battery recycling.

📞 Call 0450 131 148 for fast mobile installation anywhere in Sydney.

⭐ Technical Specifications

🔋 Key Features

• High‑performance maintenance‑free deep‑cycle battery
• Genuine dual‑purpose design (starting + deep‑cycle)
• Extra thick plates for superior amp‑hour capacity
• 510CCA strong cranking power
• Heat‑sealed, factory‑filled — no water required
• Engineered for marine, 4WD & heavy‑vehicle vibration
• Cast Calcium‑Calcium technology for long life
• Twin marine terminals for easy connection
• Built to ISO9001 international quality standards
• Charge indicator for peace of mind

📞 Call 0450 131 148 for mobile marine battery replacement anywhere in Sydney.

🔄 MF50D Comparison Table – SSB Alternatives

🌍 MF50D Cross‑Reference (Same Fitment Class)

🚤 Marine & Deep‑Cycle Applications

The MF50D is ideal for:

• Outboard motors
• Inboard engines
• Fishing boats
• Runabouts
• Jet skis
• Ski boats
• Cruisers
• Marine electronics
• Bilge pumps
• Navigation lights
• Sounders, radios & GPS units
• 4WD dual‑battery systems
• Caravan power systems
• Camping setups

🚚 What We Offer + Suburbs We Service

Battery Now NSW provides:

• Mobile marine battery delivery
• Professional installation
• Testing & diagnostics
• Heavy‑duty marine & AGM batteries
• Boat ramp, marina & waterfront service
• Old battery recycling
• Fast arrival times

Service areas include:

Illawong, Menai, Bangor, Alfords Point, Sutherland, Engadine, Kirrawee, Gymea, Miranda, Caringbah, Cronulla, Liverpool, Moorebank, Wattle Grove, Bankstown, Parramatta, Penrith, Campbelltown, Hurstville, Kogarah, Rockdale, Mascot, Botany, Sydney CBD, Eastern Suburbs, Inner West, Western Sydney, South West Sydney, St George Region, and surrounding suburbs.

📞 Call 0450 131 148 for immediate assistance.

❓ Questions & Answers

Q1: Is the MF50D suitable for marine engines

Yes — with 510CCA, it is ideal for small to mid‑size outboards and inboards.

Q2: Is the MF50D a true deep‑cycle battery

Yes — it uses extra thick plates and dense active material for genuine deep‑cycle performance.

Q3: Can the MF50D power accessories

Yes — its 66Ah capacity supports lights, radios, GPS, pumps, and electronics.

Q4: Is the MF50D maintenance‑free

Yes — it is sealed and requires no water top‑ups.

Q5: How long does the MF50D last

Most users experience 2–4 years, depending on usage and charging.