Century Batteries

Century Deep Cycle, AGM, Gel and Marine Batteries

Century is a long-established Australian battery brand with a history dating back to 1928. This collection covers 12V lead-acid batteries for stored energy and engine starting: sealed AGM and gel deep cycle batteries for house loads, plus Marine Pro, Marine Pro Cruiser and Dual Force+ dual-purpose batteries that combine cranking performance with deep cycle capability.

Capacities range from compact 37Ah gel units to 200Ah flooded marine batteries. That spread covers small auxiliary systems, full caravan and boat house banks, and heavy-duty starting applications.

Century Battery Ranges at a Glance

• AGM Deep Cycle: Sealed, maintenance-free batteries in 55Ah, 75Ah, 105Ah, 120Ah, 140Ah and 165Ah. They suit caravan, RV and off-grid house banks where spill resistance and low upkeep matter.
• Gel Deep Cycle: Available in 37Ah and 70Ah. Gel suits applications that see regular, steady discharge, such as fridges, lighting and backup power.
• Dual Force+ AGM: A 90Ah AGM battery rated at 750 CCA. It handles both engine starting and auxiliary loads in boats, 4WDs and trucks.
• Marine Pro: Dual-purpose marine batteries in 65Ah (580 CCA), 75Ah (680 CCA) and 100Ah options at 780 CCA or 1000 CCA. They suit outboards, inboards and onboard accessories.
• Marine Pro Cruiser: Flooded lead-acid batteries in 150Ah (950 CCA) and 200Ah (1200 CCA). They are built for larger vessels that need strong cranking and substantial reserve capacity.

Sizing and Selection Tips

Start with your daily energy use. Add up the watt-hours your appliances draw each day. Lead-acid batteries last longer when they are not regularly discharged deeply, so allow headroom above your calculated usage. To compare Century AGM and gel options against other chemistries, use our RV and caravan battery comparison tool.

Match the battery type to the job.

• For a pure house bank, choose AGM or gel deep cycle.
• If one battery must both start an engine and run accessories, a dual-purpose Marine Pro or Dual Force+ is the better fit.
• For high-demand marine starting with large reserve capacity, consider the Marine Pro Cruiser.

Check CCA against your engine. Confirm that the cold cranking amps meet or exceed your engine manufacturer's recommendation, particularly for larger outboards and diesel engines.

Consider mounting and maintenance. Sealed AGM and gel batteries suit enclosed or awkward mounting locations. Flooded Marine Pro Cruiser batteries need upright installation, adequate ventilation and periodic electrolyte checks.

Use the correct charge profile. AGM, gel and flooded batteries each have specific charging voltages. Set your mains charger, solar controller or DC-DC charger to suit the chemistry. This helps maximise service life.

Product Range Video

Choose the Century battery that matches your capacity, cranking and mounting needs, from compact gel units to 200Ah Marine Pro Cruiser batteries. Compare the specifications above and order your replacement or upgrade today to keep your caravan, boat, 4WD or off-grid system running reliably.