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Custom Lithium Next Generation 400Ah Ultra Slim Lithium Battery
Custom Lithium Next Generation 100Ah Ultra Slim Lithium Battery terminals
Custom Lithium 100Ah Ultra Slim Lithium Battery
Diagram showing correct and incorrect mounting orientations for Custom lithium ultra slim batteries.

Custom Lithium Next Generation 400Ah Ultra Slim Lithium Battery

SKU: CL-US-400AH-V3
$4,080.00

610mm L x 405mm H x 116mm W
WITH RAILS: 645mm L x 475mm H x 119mm W
WEIGHT: 41.5kg

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Custom Lithium Next Generation 400Ah Ultra Slim Lithium Battery

$4,080.00
Description

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

FEATURES
  • 400Ah usable capacity for extended off-grid power and high-demand systems
  • Ultra slim design ideal for tight installations behind seats, in drawers, or canopies
  • LiFePO₄ lithium chemistry for safety, stability, and long cycle life
  • Next-generation internal BMS protects against over-charge, over-discharge, over-current, and temperature extremes
  • High continuous and peak discharge capability suitable for large inverters
  • Lightweight construction compared to equivalent lead-acid battery banks
  • Fast and efficient charging from DC-DC chargers, solar regulators, and mains chargers
  • Designed and built in Australia for harsh touring and off-road conditions
Specifications

CAPACITY:400AH
CONSTANT DISCHARGE:380 AMPs
PEAK DISCHARGE:1800AMP Protection
CONSTANT CHARGE:100 AMPs
PEAK CHARGE:200 AMPs
OPERATING TEMP:-20°C – 60°C
TERMINALS:M10 terminals
CHARGE VOLTAGE:14.2v – 14.6v
ABSORPTION/FLOAT:13.4v – 13.6v
CUT OFF VOLTAGE:10.5v
NOMINAL VOLTAGE:12.8V

Warranty Information

7 Years

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