🔋 Optima REDTOP 34/78 AGM Starting Battery — 12 V 815 CCA
⚡ Premium Starting Power for Performance & Reliability
The Optima REDTOP 34/78 AGM Battery delivers industry-leading starting performance, built for high-performance, off-road, and commercial vehicles that demand instant, powerful starts.
Featuring Optima’s patented SPIRALCELL TECHNOLOGY™, this 12-volt battery provides exceptional vibration resistance, spill-proof safety, and long-lasting reliability even under extreme conditions.
With up to 3× longer life and 15× more vibration resistance than standard batteries, the Optima REDTOP 34/78 ensures consistent cranking power, clean energy delivery, and reduced maintenance — perfect for muscle cars, 4WDs, utes, trucks, and heavy-duty equipment.
🌟 Key Features & Benefits
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SPIRALCELL TECHNOLOGY™: Unique spiral-wound plates deliver cleaner, stronger energy output.
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High Cranking Power (815 CCA): Confident starts in all weather and conditions.
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Reserve Capacity (104 Minutes): Extended reliability when accessories are running.
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Spill-Proof & Maintenance-Free: Mount in virtually any position with no leaks or topping-up.
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Extreme Vibration Resistance: Built for racing, off-road, and high-impact environments.
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Fast Recharge Performance: Ideal for vehicles with frequent starts or heavy loads.
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Long Service Life: Up to 3 times the lifespan of standard lead-acid batteries.
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36-Month Warranty: Manufacturer-backed confidence.
📊 Specifications
| Specification | Details |
|---|---|
| Model | REDTOP 34/78 |
| Part Number | 8004-250 / RT U 4.2 |
| Voltage | 12 V |
| Cold Cranking Amps (CCA) | 815 |
| Capacity (C/20 Rate) | 50 Ah |
| Reserve Capacity (RC) | 104 minutes |
| Technology | AGM Starting |
| Dimensions (mm) | 254 L × 173 W × 198 H |
| Weight | 17.6 kg |
| Polarity | D |
| Terminal Type | Standard + Front |
| Special Features | CH, GM, MF, SC, VR |
| Warranty | 36 months (conditions apply) |
🚗 Ideal Applications
✅ Performance Cars & Racing Vehicles – Instant starting power and vibration protection.
✅ 4WDs & Off-Road Trucks – Built for harsh terrain and frequent cranking.
✅ Heavy-Duty Utes & Commercial Vehicles – Dependable cold-start performance.
✅ Boats & Marine Engines – Reliable power with spill-proof design.
💪 Designed to outperform conventional flooded batteries in both starting strength and durability.
📍 Pickup & Stock Availability
Pickup available by arrangement from:
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Albany
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Hamilton
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Nelson
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Christchurch
📞 Please call ahead to confirm stock availability before pickup.
Nationwide delivery available — contact us for shipping or trade enquiries.
♻️ Free Battery Recycling & Installation
We care about the environment — ♻️ bring your old battery for free recycling and complimentary in-store fitting when you purchase your Optima battery.
💎 Why Choose Optima Batteries NZ?
Optima Batteries are renowned worldwide for their cutting-edge engineering and long-term performance. The REDTOP series represents the pinnacle of AGM starting power — designed for drivers who demand uncompromising strength, stability, and longevity.
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Trusted by performance and off-road enthusiasts globally
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Innovative SPIRALCELL construction for clean, consistent power
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Compact, lightweight design with fast recharge rate
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Backed by Optima’s industry-leading 36-month warranty
⚡ Summary
The Optima REDTOP 34/78 AGM Starting Battery (12 V 815 CCA) delivers unmatched starting performance and vibration resistance for performance cars, trucks, and 4WDs. With SPIRALCELL TECHNOLOGY™, a 36-month warranty, and free battery recycling in NZ, it’s the ultimate choice for drivers who expect more from their battery.
Available now in Albany, Hamilton, Nelson, and Christchurch — power your drive with Optima.