Types of Canberra Batteries

Located at Williamsdale, the Big Canberra Battery will be able to store enough renewable energy to power one-third of the city for two hours during peak demand periods. It will also be able to back up the grid within milliseconds to prevent blackouts.

It’s a large sodium nickel chloride battery, with the manufacturer looking to Australia as a long-term market. However, it didn’t fare so well in testing.

AGM Batteries

Like GEL batteries, AGM batteries contain lead acid. What sets them apart is the electrolyte which is soaked into a special absorbed glass mat instead of sloshing around inside the battery cells. This increases the amount of power they can deliver and their ability to deep cycle, whilst also improving durability compared to flooded batteries.

AGM batteries can be charged more frequently than flooded batteries and require less maintenance because they don’t need water added to them. However, they are still subject to corrosion and need to be carefully connected and stored in a safe place to ensure optimum performance.

AGM batteries are particularly resistant to vibration and are often used in RVs, backup power systems, and renewable energy storage solutions. They can also provide a high voltage output making them perfect for start-stop applications and hybrid vehicles.

Deep Cycle Batteries

Unlike regular batteries that provide quick bursts of energy for starting engines, deep cycle batteries are designed to deliver steady power over extended periods of time. They have a higher RC than traditional lead-acid batteries and can tolerate frequent deep discharges without significantly reducing their lifespan.

They are typically constructed with flooded lead plates in a liquid electrolyte, and can be subdivided into flooded lead acid and valve-regulated lead acid (VRLA) categories, with the VRLA battery further subdivided into Absorbed Glass Mat (AGM) and gel types. AGM and gel batteries have reinforced absorbed glass mat separators to prevent leakage of the free liquid electrolyte, and are more tolerant to different charge rates.

Deep cycle batteries will cost more upfront than their regular counterparts, but they will last longer and offer greater capacity in the long term.

Caravan Batteries

Caravan Batteries are designed to power caravans, camper trailers, RVs & 4WDs and need to have a higher capacity than car batteries. The most common types of caravan battery are AGM, Gel and Lithium.

AGM & Gel batteries use absorbent glass mat (basically fibreglass matting) between lead plates to store the electrolyte solution instead of having it slosh around like in regular ‘flooded’ or cheap batteries. This means they are sealed, maintenance free and don’t produce gases when charging or discharging.

AGM and Lithium batteries offer fast recharging, higher energy density, lighter weight and extended lifespans when compared to lead acid. Choose a battery that fits your caravan’s power requirements, is compatible with its electrical system and falls within your budget. You can also find a wide range of accessories to ensure optimal performance and longevity.

Marine Batteries

Marine batteries are designed to withstand the harsh operating conditions of boats and other marine applications. They are deep-cycle and can be drained and recharged many times over, unlike starter batteries. They also have thicker plates to withstand high temperatures and vibration.

The ACT has been selected to host one of the country’s biggest big batteries in Williamsdale. Eku Energy beat over 40 other applicants to win the contract, which will see the battery store enough renewable energy to power a third of Canberra for two hours during peak demand periods.

Battery storage is essential for ensuring optimal performance and longevity. Keeping your battery cool, dry, and well-ventilated is key to preventing sulphation. You can do this by following proper charging, discharging, and usage cycles.

Off Grid Solar Batteries

A well-managed battery can last for 20 years of charging and discharging cycles before requiring replacement. Unlike other batteries, lithium batteries can be recycled using an environmentally-friendly process that uses a conductive alloy to separate the individual cells and metals.

The ACT Government is investing in community batteries to help homeowners save money on electricity bills and offset emissions. The community battery initiative will enable ACT residents to store solar energy and share it with neighbours during peak periods.

The ACT’s new Big Canberra Battery is under construction in Williamsdale and is expected to be connected in early 2023. The 250MW/500MWh battery is the biggest in Australia and will help support the grid during network outages, avoid blackouts, and fill gaps in wind and solar power. It will also provide a financial return for the ACT.

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