Description
⚓ Reliable Starting Power for Small to Mid-Size Boats
The SuperCharge SeaMaster Gold MFM50 is a maintenance-free 12 V marine battery engineered for superior starting power and long reserve capacity. Delivering 640 Cold Cranking Amps (CCA) and a 140-minute reserve capacity, this compact powerhouse provides consistent, reliable starting performance for boats with engines up to 200 HP and essential on-board electronics.
Featuring Calcium Expanded Grid (EXG) Technology and a fully-sealed design, the SeaMaster Gold series offers enhanced corrosion resistance, longer life, and maximum durability under marine conditions.
⚙️ Technical Specifications
| Specification | Detail |
|---|---|
| Model | MFM50 (SeaMaster Gold) |
| Voltage | 12 V |
| Cold Cranking Amps (CCA) | 640 |
| Reserve Capacity (RC) | 140 minutes |
| Dimensions (L × W × H) | 258 × 174 × 201 mm (227 mm total height) |
| Weight | ≈ 20 kg |
| Battery Type | Maintenance-Free (Calcium Technology) |
| Warranty | 24 months (conditions apply) |
🔋 Key Features & Benefits
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Premium Maintenance-Free Design – No topping up required; sealed to prevent leakage or evaporation.
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EXG Technology – Improved plate strength and corrosion resistance for longer battery life.
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Strong Starting Power (640 CCA) – Reliable ignition for marine engines in all conditions.
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High Reserve Capacity (140 min) – Keeps electronics running between starts.
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Heavy-Duty Marine Construction – Built to resist vibration and harsh salt-water environments.
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Fully Sealed Cover – Minimises electrolyte loss and extends battery service life.
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Eco-Friendly – 100 % recyclable materials with low maintenance requirements.
🛥️ Ideal For
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Boats, runabouts and small yachts (up to ≈ 200 HP)
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Outboard and inboard starting applications
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Light commercial marine use and fishing boats
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On-board electronics such as fish finders and navigation units
🔄 Replacement / Cross Reference
Replaces: NS70, M24, M24/580, M24/680, MS600, CV24, CM24, NS70MF, NS70RMF, N50ZZ, MF55D26R, MF65D26R, MF75D26R, MF85D26R, MF95D26R, MF105D26R, SMFNS70X, D26X, 570024051, M24MF and other Group 24 marine batteries.
📍 Pickup & Availability
Pickup available from:
Hamilton | Wellington | Christchurch
📞 Please call first to confirm stock availability before pickup.
🛡️ Warranty
24-Month Nationwide Marine Warranty (conditions apply). See product label for details.
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