Extreme High Crank 100Ah Wetcell Hybrid Battery

🔋 Thumper Extreme Wetcell ‘Hybrid’ 100Ah Battery (EXT-HC)

High Crank + Deep Cycle Performance

The Thumper EXT-HC 100Ah Hybrid Battery is a heavy-duty solution designed to deliver both powerful engine starting and reliable deep cycle performance.

Built for the 4WD, caravan, and marine market, this hybrid battery combines the benefits of a starter battery and auxiliary battery in one unit, making it a versatile and cost-effective option.

⚡ Key Features

✔ Hybrid design – crank + deep cycle capability
✔ High cranking performance for reliable starting
✔ Ideal for running fridges and 12V accessories
✔ Bonded element sealed lead acid construction
✔ Designed for off-road and harsh environments
✔ Fast recharge characteristics
✔ 3 Year Nationwide Warranty

🔧 Applications

Perfect for:

✔ Under bonnet dual battery systems (starter or auxiliary)
✔ 4WD touring setups
✔ Caravan / camper trailer installations
✔ Marine use (boats, GPS, fish finders, lighting)
✔ General-purpose 12V power systems

⚠️ Installation Considerations

This is a wet-cell battery (not fully sealed):

✔ Suitable for:

• Engine bays
• Caravan boots or external compartments
• Battery boxes mounted externally
• Marine environments

❌ Not suitable for:

• Inside vehicle cabins
• Under beds or enclosed spaces
• Poorly ventilated areas

👉 Wet-cell batteries can release gases during charging, so adequate ventilation is required

🔋 Why Choose a Hybrid Battery?

✔ Combines starting and accessory use in one battery
✔ Eliminates need for separate systems in some setups
✔ Stronger cranking than most AGM deep cycle batteries
✔ More versatile for mixed-use applications

📊 Specifications

• Nominal Voltage: 12V
• Capacity: 100Ah (20hr rate)
• Weight: 22.5kg

Dimensions:

• Length: 203mm
• Width: 172mm
• Height (with posts): 220mm

Performance:

• Cold Cranking Amps (CCA): 630A
• Marine Cranking Amps (MCA): 720A
• Load Test Rating: 285A
• Reserve Capacity: 162 minutes

Terminals:

• Marine Twin Terminals (M6 thread)
• High Crank Posts

🏕️ Ideal For

✔ Off-road and touring vehicles
✔ Caravan and camper power systems
✔ Boats and marine setups
✔ Users wanting a dual-purpose battery (start + run accessories)

🔥 Summary

The Thumper EXT-HC 100Ah Hybrid Battery is built for those who need:

✔ Strong starting power
✔ Reliable accessory runtime
✔ A tough, versatile battery for demanding environments

👉 One battery that does both jobs — built for real-world use.