Aquion Energy are a US based company with patents in Aqueous Hybrid Ion (AHI) technology. In basic terms this means they have developed a method for storing power in salt water based batteries. Aquion's batteries are economical, very long lasting and suited to deep cycle applications such as standalone solar. They are also the most environmentally friendly battery on the planet!
This 2.6kWhr unit has 2kWhr of usable energy and is rated for >3000 cycles at 100% DoD. With the correct design this will give a lifespan of in excess of ten years.
Aquion's batteries are also naturally suited for Australia's climate with excellent temperature response and an extremely robust design. This is a 48V pack and can supply up to 1kW output. Ecoelectric can design or price an Aquion Energy unit of any size including commercial and utility applications.