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The Custom Lithium Next Generation 1120Ah Ultra Slim XL Lithium Battery is designed for extreme power demands where space efficiency, reliability, and long-term performance are critical. With an enormous 1120Ah capacity, this battery is ideal for high-end touring vehicles, caravans, motorhomes, marine systems, and serious off-grid power setups.
Engineered using automotive-grade LiFePO₄ cells, this battery delivers stable voltage, exceptional cycle life, and safe operation under heavy loads. The Ultra Slim XL profile allows large-capacity energy storage to be installed in tight or shallow battery compartments where traditional batteries simply won’t fit.
An integrated high-current Battery Management System (BMS) provides full protection against over-charge, over-discharge, over-current, temperature extremes, and short-circuit conditions—ensuring consistent performance and long-term reliability in harsh Australian conditions.
Supports large inverters, air compressors, induction cooktops, fridges, and full vehicle electrical systems
Reduces the need for multiple batteries by offering huge capacity in a single unit
Maintains stable voltage under load, protecting sensitive electronics
Long service life with thousands of charge cycles
Minimal maintenance compared to AGM or lead-acid alternatives
Ideal for long-term touring, remote travel, and off-grid living
Touring 4WDs with complex electrical systems
Motorhomes, caravans, and camper trailers
Marine vessels with high power requirements
Off-grid solar and inverter-based installations
Commercial or expedition-grade power setups
Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
US$40
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