🔋 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.
