Comprehensive Marine Power Services
Battery Testing & Diagnostics
Not sure if your battery is the issue? We offer full testing to diagnose power problems—often, it’s the charger at fault, not the battery.
Custom Marine Power Systems
We design and install custom power solutions tailored to your boat’s power needs, space, and budget—ensuring seamless performance for your lifestyle at sea.
Full-Service Marine Electrical Support
Our experienced marine electricians handle everything from basic installations to complex electrical systems, ensuring your boat is powered reliably.
Why Choose Us?
Specialized Marine Expertise – We understand marine power better than anyone.
Massive Inventory – Ready-to-go stock of premium marine batteries & accessories.
Custom Solutions – We design, install, and optimize systems for your exact needs.
Unmatched Customer Support – Our team stands by every system we install, ensuring reliability and satisfaction.
Real Customers, Real Results
"Battery Business transformed our 12-meter catamaran with a powerful solar array and lithium battery system. Their expertise and commitment were second to none. We now have reliable power with minimal generator use—and a half-tonne weight savings!"
— Graham Bauer
Get the Right Power for Your Boat
Whether you're upgrading your marine power system, replacing an old battery, or looking for sustainable power solutions, Battery Business has you covered.
Call us today at (02) 9970 6999 or visit our store to find the perfect marine battery for your needs.
Power your journey with confidence—Battery Business has the expertise, inventory, and support you need.
Marine Batteries
Reliable Power Solutions for Every Marine Adventure
At Battery Business, we specialize in marine batteries and power solutions, ensuring your boat runs smoothly and efficiently—whether you're setting sail for a weekend trip or a long-haul voyage.
Expertise You Can Trust
With years of hands-on experience, our team understands the unique challenges of marine power. We've worked on everything from simple charging setups for small boats to fully customized power systems for yachts sailing around the world.
A Huge Range of Marine Batteries
We stock a wide selection of deep cycle, AGM, gel, lithium, and wet marine batteries from industry-leading brands:
Top Brands We Carry:
Lion & Rocket
US Battery
Delkor
Fullriver
Lifeline
Interstate
Bosch
Optima
Trojan
Deka
Sonnenschein
…and more.
Marine Battery Chargers & Power Management
The right charger is critical for optimal battery performance. We stock and recommend Ctek, Sterling Pro-charge, Matson, Enerdrive, and Xantrex marine chargers to match your battery and usage needs.
Looking for long-term, sustainable power? We also offer solar panels and wind generators to keep you self-sufficient at sea.
Choosing the Right Marine Battery
Car batteries ≠ Marine batteries – Marine batteries are built for harsh conditions.
Starting Batteries – Provide a quick burst of power but aren’t designed for deep cycling.
Deep Cycle Batteries – Ideal for running appliances, lights, and bilge pumps without an engine running.
AGM & Gel Batteries – Spill-proof and can be mounted in different orientations for space-saving.
Lithium Batteries – Lightweight, long-lasting, and ideal for modern marine power systems.
Need help choosing? Call us at (02) 9970 6999—our experts will guide you to the best option.