Deep Cycle Marine Batteries

Power Your Water Adventure With a Deep Cycle Marine Battery

When you’re out on the water, reliable power means keeping your essential systems running, day after day. An iTechworld deep cycle marine battery is all about steady, sustained energy to power up everything from navigation electronics to fridges, deck lighting, and trolling motors. Everything is designed and tested right here in Australia, so we know they can deal with salt spray, high humidity, extreme heat and more.

Our 12V marine battery range isn’t like regular starting batteries made for short bursts. Instead, they’re made to run appliances over long periods, so you get maximum runtime alongside performance that won’t let you down. You get 100% usable capacity, high discharge capability, and premium Grade A lithium cells, so you can set sail with a power system that’s ready for anything.

Deep Cycle Marine Batteries From the Power Experts

• 100% Usable Capacity: Unlike AGM batteries that offer only about 50% usable power, iTechworld lithium technology lets you tap into the full charge. That means longer trips and fewer recharge stops.

• True Deep Cycle Performance: This range is built specifically for running appliances and electronics, giving consistent power over longer periods without any unwanted performance drop-offs.

• Marine-Ready Durability: Corrosion-resistant casings and sealed construction protect against harsh salt air, spray, and debris. Get power you can count on, wherever you go. 

• High Discharge Rates: Run high-draw onboard equipment like inverters for air conditioning or large fridges with ease. 

• Lightweight & Compact: Lithium chemistry makes for batteries that are up to 50% lighter than lead-acid equivalents. This frees up more storage and ensures your vessel stays balanced.

• Premium Prismatic LiFePO4 Cells: These power solutions are thermally stable, safe, and long-lasting. They've been engineered to handle thousands of cycles; that’s up to 10 years of adventures.

• Australian Expertise & Support: We’re a family-owned Australian business with a local support team who understands your marine power needs. No offshore call centres, no scripts.