What are Australia's best home batteries?

Every year, I ask hundreds of Australian battery installers to vote on the best home batteries based on what they’d install on their own homes. For the best home batteries in 2025, Tesla and Sungrow tied for first place, marking a big shift — Tesla had dominated the top spot since 2021.

Why are lead acid batteries so bad?

A problem with lead acid batteries is that as the electrolyte of sulphuric acid and water heats up, the water can burn off – this is a source of hydrogen off-gassing. Once the glass-wool electrode separator is 80 per cent dry, the battery is “bung”, McKenzie says. The carbon fibre layers control those pores and keep the separator hydrated, he says.

How much does a battery rebate cost in Australia?

An Australia wide federal battery rebate lowers home battery costs by around $330 per kilowatt-hour (kWh) of usable capacity. State/Territory Rebates? The federal battery rebate to be compatible with state and territory rebates. Currently, WA is the only state that offers a rebate.

Which battery is best for home energy storage?

Lithium-ion batteries are the most popular choice for home energy storage due to their efficiency, safety, and longevity. They can be categorized into high capacity, high power, and lower capacity types, each suited for specific applications. The lithium ion battery can provide reliable performance in various settings.