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📍 East Tamaki - 212c Burswood Dr. 📞 0800 315 3887 | Open 7 Days
📍 Mt Albert - 648 New North Rd. 📞 0800 315 3897 | Open 6 Days
📍 Hamilton - 87a Greenwood St. 📞 0800 315 3877 | Open 6 Days
📍 Christchurch - 25 Battersea St. 📞 0800 315 3867 | Open 6 Days

📍 East Tamaki - 212c Burswood Dr. 📞 0800 315 3887
📍 Mt Albert - 648 New North Rd. 📞 0800 315 3897
📍 Hamilton - 87a Greenwood St. 📞 0800 315 3877
📍 Christchurch - 25 Battersea St. 📞 0800 315 3867

Marine Battery SuperCharge SeaMaster MFM70 720 CCA - Superstart Batteries

SuperCharge SeaMaster MFM70 Marine Battery – 12V 720CCA | Heavy-Duty Maintenance-Free (24-Month Warranty)

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$389.90
$389.90 - $389.90
$389.90
$299.90
$299.90 - $299.90
$299.90

⚓ Premium Maintenance-Free Marine Battery for Reliable Starting Power

The SuperCharge SeaMaster MFM70 (SeaMaster GOLD Series) is a premium 12-volt marine starting battery engineered for heavy-duty boating applications. Designed for maximum reliability, it delivers 720 Cold Cranking Amps (CCA) and a strong 160-minute reserve capacity, providing dependable power for both engine starts and onboard electrics.

Built with EXG Expanded Grid Technology and a fully sealed maintenance-free design, this battery offers exceptional corrosion resistance, minimal water loss, and long-lasting performance — ideal for boats, yachts, and marine engines up to 300 HP.

⚙️ Technical Specifications

Specification Detail
Model MFM70 (SeaMaster GOLD)
Voltage 12V
Cold Cranking Amps (CCA) 720
Reserve Capacity (RC) 160 minutes
Dimensions (L × W × H) 305 × 174 × 201 mm (227 mm total height)
Weight 24.7 kg
Warranty 24 months (conditions apply)

🔋 Key Features & Benefits

  • Maintenance-Free Design: No water top-ups required – fully sealed cover reduces evaporation and leakage.

  • Premium Heavy-Duty Build: Reinforced internal structure and calcium-expanded plates for extra durability and grid strength.

  • EXG Technology: Enhanced corrosion resistance and superior power delivery under load.

  • High Starting Power: 720 CCA ensures reliable ignition for large marine engines.

  • Long Reserve Capacity: 160-minute RC supports auxiliary electronics like fish finders, lighting, and radios.

  • Vibration Resistant: Ideal for harsh marine conditions, ensuring steady performance on rough water.

  • Eco-Friendly: Built with recyclable materials, meeting environmental standards.

🛥️ Ideal For

  • Boats, yachts, and watercraft with engines up to 300–350 HP

  • Marine starting applications requiring high CCA

  • Heavy-duty leisure and commercial marine use

  • Fishing boats and vessels with auxiliary electronics

🔄 Replacement / Cross Reference

Direct replacement for:
N70, M27, M27/660, M27/730, M27/780, MS700, CV27, MMF27/780, CM27/850, N70MF, N70Z, N70ZZ, MF75D31R, MF85D31R, MF95D31R, MF105D31R, MF115D31R, 4703, D31X, M27MF, and more.

📍 Pickup & Availability

Pickup available from:
Hamilton | Wellington | Christchurch

Please call ahead to confirm stock availability before visiting.

🛡️ Warranty

24-Month Nationwide Marine Warranty (conditions apply).
Refer to the product label for full details.