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CUSTOM LITHIUM

Next Generation Ultra Slim Lithium Battery 1120Ah

Next Generation Ultra Slim Lithium Battery 1120Ah

SKU:CL-US-1120AH-V3

Regular price $10,499.00
Regular price Sale price $10,499.00
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🔋 Ultra Slim XL Lithium Battery (1120Ah)

Ultimate Power Capacity. Extreme Performance. Built for Elite Off-Grid Systems.

When only the absolute maximum power will do, the Ultra Slim XL 1120Ah Lithium Battery delivers unmatched energy storage for the most demanding off-grid applications.

Engineered for serious builds, large-scale systems, and long-term автономous power, this battery combines massive capacity, advanced protection, and Australian-made reliability in a compact, install-friendly design.


🚀 Why This Battery Stands Out

📏 Ultra-Slim XL High-Capacity Design
An enormous 1120Ah capacity packed into a streamlined footprint—perfect for high-performance systems where space efficiency still matters.

Extreme Power Output
Handles demanding loads with 380A continuous discharge and up to 1800A peak, ideal for full inverter systems and heavy-duty applications.

🛡️ Modified Heltech BMS + Active Balancer
Advanced battery management protects against overheating, over-discharge, and low-temperature charging, while maintaining optimal cell balance.

🔋 Premium LiFePO4 Cells
Built with A-grade automotive lithium cells—delivering maximum safety, long lifespan, and superior efficiency.

🛠️ Heavy-Duty Aluminium Enclosure
Designed to withstand vibration, corrugations, and harsh environments, ensuring long-term durability in real-world conditions.

🇦🇺 Australian Made Quality
Manufactured in Brisbane and individually bench-tested to the highest standards of performance and reliability.

🛡️ 7-Year Warranty
Backed by a full 7-year warranty for total confidence in your power system.


🔌 Power Everything Without Limits

Run complete high-demand systems with ease:

  • 📡 Starlink systems
  • ⚡ Full 240V inverter setups
  • ❄️ Multiple fridges & freezers
  • 🍳 Induction cooktops
  • 🔧 Air compressors & heavy tools
  • 💻 Workstations & electronics
  • 💡 Full lighting systems & accessories

🌍 Perfect For:

  • 🚐 Large caravan & expedition builds
  • 🚗 High-end 4WD touring systems
  • 🚤 Marine & offshore installations
  • 🏕️ Long-term off-grid living & remote setups

🧠 Built for Real-World Conditions

Designed by off-road enthusiasts, this battery is engineered to handle extreme loads, harsh terrain, and extended remote travel, giving you the confidence to power your entire setup anywhere.


🔒 Safety Meets Extreme Performance

With LiFePO4 chemistry and a high-current BMS, this battery delivers safe, stable, and efficient power, even under maximum demand.


📊 Technical Specifications

  • 🔋 Capacity: 1120Ah
  • Nominal Voltage: 12.8V
  • 🔌 Charge Voltage: 14.2V – 14.6V
  • 🔋 Float Voltage: 13.4V – 13.6V
  • Continuous Discharge: 380A
  • Peak Discharge: 1800A (Protection)
  • 🔌 Recommended Charge: 380A
  • 🔻 Cut-Off Voltage: 10.5V
  • 🌡️ Operating Temp: -20°C to 60°C
  • 🔩 Terminals: M10

📐 Dimensions & Weight

  • 📏 Core Size: 803 × 487 × 163 mm
  • 📏 Overall Size: 830 × 487 × 163 mm
  • ⚖️ Weight: 100 kg

⚠️ Installation Notes

  • Must be hard-mounted to a solid surface (flat or side mounting as shown in product images).
  • Ensure the battery weight is fully supported by the vehicle or canopy floor.
  • Installation by a qualified auto electrician is strongly recommended.

🇦🇺 Built to Go the Distance

Proudly Australian Made, this battery is engineered to deliver maximum capacity, durability, and performance for the most demanding off-grid systems.

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