Extreme High Crank 80Ah Wetcell Hybrid Battery

🔋 Thumper Extreme Wetcell ‘Hybrid’ 80Ah Battery (EXT-HC)

High Crank + Deep Cycle Performance in One Battery

The Thumper EXT-HC 80Ah Hybrid Battery is a heavy-duty solution designed for users who need both strong starting power and reliable accessory performance.

Built for the off-road, caravan, and marine industry, this battery combines cranking strength with deep cycle capability, making it an ideal all-rounder.

⚡ Key Features

✔ Hybrid design – cranking + deep cycle in one
✔ High cranking output for reliable engine starts
✔ Deep cycle capability for running fridges & accessories
✔ Bonded element sealed lead acid construction
✔ Designed for harsh off-road and marine environments
✔ Fast recharge characteristics
✔ 3 Year Nationwide Warranty

🔧 Designed For Versatility

Perfect for:

✔ Under bonnet dual battery systems
✔ Primary starter battery replacement
✔ Secondary battery for 12V accessories
✔ Caravan / camper trailer setups
✔ Marine applications (boats, fish finders, GPS, lighting)

⚠️ Installation Notes

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

✔ Suitable for:

• Engine bays
• Caravan boots / external compartments
• Battery boxes or chassis mounts
• Marine environments

❌ Not suitable for:

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

👉 Wet-cell batteries can emit gases during charging, so ventilation is essential

🔋 Why Choose a Hybrid Battery?

✔ Combines starter + auxiliary battery roles
✔ More versatile than standard batteries
✔ Ideal for users wanting a simple dual-purpose setup
✔ Great balance of performance and value

📊 Specifications

• Nominal Voltage: 12V
• Capacity: 80Ah (20hr rate)
• Weight: 19.3kg

Dimensions:

• Length: 275mm
• Width: 172mm
• Height (with posts): 229mm

Performance:

• Cold Cranking Amps (CCA): 520A
• Marine Cranking Amps (MCA): 620A
• Load Test Rating: 250A
• Reserve Capacity: 145 minutes

Terminals:

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

🏕️ Ideal For

✔ 4WD touring setups
✔ Off-grid camping
✔ Caravan & camper trailer systems
✔ Boats & marine use
✔ Users wanting one battery for starting + accessories

🔥 Summary

The Thumper EXT-HC 80Ah Hybrid Battery is the perfect solution for those needing:

✔ Strong engine starting power
✔ Reliable deep cycle performance
✔ A versatile, dual-purpose battery

👉 One battery. Multiple jobs. Built for tough conditions.