Custom Lithium Next Generation 400Ah Ultra Slim Lithium Battery

Custom Lithium Next Generation 400Ah Ultra Slim Lithium Battery

The Custom Lithium Next Generation 400Ah Ultra Slim Lithium Battery is a high-capacity, space-efficient LiFePO₄ battery engineered for serious touring, off-grid power systems, and demanding 12 V applications. Designed and built in Australia, this battery delivers exceptional energy storage in a slimline form factor, making it ideal for drawer systems, canopies, wagons, caravans, and custom vehicle builds where space is at a premium.

With a massive 400Ah usable capacity, this battery is capable of powering fridges, inverters, lighting, cooking appliances, communications equipment, and charging systems for extended periods without compromise. The next-generation internal design incorporates a high-performance Battery Management System (BMS) to ensure safe operation, long service life, and reliable performance under heavy loads.

Unlike traditional lead-acid batteries, this lithium solution provides deep cycle capability, stable voltage output, faster charging, and significantly reduced weight, making it an ideal upgrade for modern 4WD and touring setups.

Benefits

• Massive energy storage — Ideal for long trips, remote travel, and off-grid living where reliable power is critical.

• Space-saving installation — Slimline form allows flexible mounting options without sacrificing capacity.

• Consistent power delivery — Stable voltage output protects sensitive electronics and appliances.

• Long service life — Designed for thousands of charge cycles, reducing long-term replacement costs.

• Reduced system weight — Improves vehicle payload management compared to traditional battery banks.

Ideal Applications

• 4WD touring vehicles and overland builds

• Canopies, wagons, and drawer systems

• Caravans and camper trailers

• Off-grid and mobile power systems

• High-load inverter setups

• Marine and recreational power applications