Next Generation 920Ah Ultra Slim XL Lithium Battery

The Custom Lithium Next Generation 920Ah Ultra Slim XL Lithium Battery is engineered for extreme power demands while maintaining a space-efficient, slimline footprint. Designed for high-end 12V systems, this battery is ideal for serious touring vehicles, caravans, motorhomes, marine applications, and off-grid power systems where long run times and reliability are essential.

Built using premium automotive-grade LiFePO₄ lithium cells and an advanced Battery Management System (BMS) with active cell balancing, this battery delivers outstanding safety, performance, and longevity. The Ultra Slim XL design allows for installation in larger battery compartments such as canopies, under-floor storage, and dedicated battery bays without sacrificing usable space.

Benefits

• Extended off-grid capability with massive usable energy storage

• Efficient space usage thanks to the slim XL design

• Reliable power delivery for fridges, inverters, induction cooktops, air conditioning, and high-draw accessories

• Safe and intelligent operation with advanced battery protection and cell balancing

• Built for harsh Australian conditions, including touring, marine, and remote travel

• Long-term investment with high cycle life and extended warranty coverage

Ideal Applications

• High-end 4WD touring builds and canopy systems

• Caravans and motorhomes with large inverter setups

• Marine house battery systems

• Off-grid solar and backup power solutions

• Users requiring maximum capacity in a 12V lithium system