What are the Best Solar Batteries to Choose?

Sungrow can ensure that your solar power system can continue to supply electricity even during periods of low sunlight or at night. In Australia, the SOFAR BTS DS5 5.12kWh at $5,749.04 emerges as a robust, scalable, and reliable solar battery system. Whether for larger installations or systems requiring high-load support, this battery system offers a comprehensive solution to enhance solar energy capabilities. Redback started the clean energy journey with us more than five years ago. Since then, Redback has diversified its product range to provide both battery and solar-only solutions. The Redback Smart Inverter for solar-only systems is affordable and robust for Australian conditions.
These batteries are commercial solar battery solution south australia perfect for RV owners or anyone who want to travel with a solar battery because they don’t have to stay upright and can move around quickly. These solar batteries work well to maintain a steady stream of electricity over a longer time. The depth of discharge (DoD) of a battery represents the proportion of the battery’s total capacity that has been discharged. There are various kinds of batteries that can be used on solar systems.

On a national level, the average cost for a 10kW solar battery system in 2025 ranges from $8,999 to $18,000, including installation. This depends on the battery brand, installer, and whether it’s paired with a solar PV system. Although the Powerwall 2 looks appealing at first glance, there are a few drawbacks. Aside from the jaw-dropping price and dubious return on investment, Tesla battery customers don’t really get much choice in terms of size and feed-in type. The Powerwall 2 only works with single-phase power, and 12.5kWh batteries are your only size option.
With the energy market closing due to soaring energy prices in mid-2022, for some Australians, we see a desire to increase their independence from the power network. Solar and batteries effectively take the majority of requirements and costs into your own hands. Most solar batteries on the market are now capable of keeping the lights on during a power outage. With some battery models, additional hardware is required to enable the battery to continue providing power during a blackout. A typical residential solar system without a battery will cover about 30%-50% of household power consumption.
However, to get you started, this article will cover the most often recommended solar battery storage options in Australia. Overall, BYD Premium Solar Batteries are an excellent choice for anyone looking for a reliable and efficient energy storage solution for their solar energy system. The battery is designed to be compatible with most solar inverters and can be easily integrated into existing solar systems. It also comes with a 10-year warranty, ensuring homeowners can rely on it for years. Sungrow’s high performance, advanced features, and extended warranty period make them a worthwhile investment for those seeking a reliable and efficient energy storage solution. The new B2 series offers a well-made, stackable modular battery that is ideal for backup power.

They collected the tested battery in 2019 but decided to issue a refund rather than a replacement. From then on, it continued to operate and the calculated battery capacity slightly improved, but by the end of the trial the capacity had significantly reduced to about 37%. This battery generally ran without problems, and demonstrated high efficiency, though its capacity fade appeared to accelerate over time. Eventually the battery failed in 2020, with the fault suspected to be an internal battery management system (BMS) failure of one module. The battery was replaced in the test in late 2020 with a newer version (LVS), which ran without any problems to the end of the trial in March 2022.
Up to 3 SolarEdge Home Battery can be stacked per inverter in a solar energy system. ​BYD stands behind the quality and reliability of its battery systems, which is reflected in its 10-year warranty coverage. The BYD Battery-Box warranty is inclusive of coverage for material defects and product workmanship.
Available in different sizes, it allows you to start small and add more capacity over time, making it one of the most flexible options on the market. In 2025, Australia will have many solar batteries for different needs and prices. They stand out in capacity, efficiency, and how well they work with solar systems. The best solar batteries in Australia enable households to store extra solar power for later use. This means less need for the grid, lower bills, and more energy freedom.

It should also be noted that costs relating to transport, travel, and labour on an eligible claim are capped at a maximum of $200. This is a pretty low figure, as you may assume a warranty replacement may require multiple visits and labour costs in excess of $200. Notably the environmental protection rating of the cabinet is IP30, meaning it is best-suited to an indoor installation. The battery is capable of operating through a blackout through the addition of optional hardware. The expected operational life of the battery, often expressed in years or cycles.
The system’s certification by the CEC ensures that it meets Australia’s stringent energy standards, providing homeowners with confidence in its performance and safety. Selecting the best battery is difficult due to the many system types or configurations available, each with different performance characteristics. Another layer of complexity is the compatibility issue - many lithium batteries are designed to work with a specific type of hybrid inverter. Then, there are lower-voltage (48V) modular, and rack-mount battery systems designed to work with powerful off-grid inverter-chargers. Home solar battery storage is becoming increasingly popular in Australia to reduce reliance on the grid, save money on electricity bills, and protect against power outages.

It’s best to size your battery based on your peak evening usage and how much solar you typically export during the day. For example, a Tesla Powerwall (13.5kWh) costs around  AUD 15,500 to install, while a MANLY 10 Kwh Battery might cost closer to AUD 2400(Only Battery). Newer brands like BLUETTI and Alpha ESS also offer good value and flexibility, with modular designs and IP65-rated weather protection. The Enphase IQ 5P is a compact AC-coupled battery designed for households that value flexibility and data transparency. It integrates seamlessly with Enphase microinverters and features real-time app monitoring. Sonnen’s Batterie Eco brings intelligent energy control into Aussie homes.
The battery’s chemistry makes it, in several ways, superior to standard lithium-ion solar batteries. It helps them use solar energy more efficiently and become more energy independent. The Powerwall is a leading solar battery option in the Australian market. It has impressive capacity, performance, design, and advanced monitoring capabilities. These batteries are designed to provide reliable and efficient energy storage.