1300 285 885 With electricity bills on the rise and energy security becoming more important than ever, Australians are increasingly turning to solar batteries to get the most out of their solar systems. A solar battery allows you to store excess power generated during the day and use it at night or during blackouts, helping you save money and gain more independence from the grid.
But with so many brands available in 2025, which battery is best for your home? To make things easier, we’ve rounded up the Top 10 Solar Batteries in Australia (2025), explained their unique benefits, and added a side-by-side comparison table to help you choose.
1. Tesla Powerwall 3
The Tesla Powerwall is one of the most well-known and trusted solar batteries on the market. Designed for homes and small businesses, it allows you to capture and store excess solar energy during the day and use it when the sun isn’t shining, like in the evening, on cloudy days, or even during a power outage.
- Capacity: 13.5 kWh
- Chemistry: Lithium-ion
- Warranty: 10 years
Tesla has set the benchmark for home energy storage worldwide. The Powerwall 3 is a sleek, all-in-one solution with an integrated inverter, making it simple to install and operate.
Key Benefits: - High capacity covers most household evening and overnight needs.
- Real-time monitoring with the Tesla app for easy control.
- Seamless backup during blackouts with near-instant switchover.
- Works beautifully with solar + EV charging setups.
2. Sungrow SBR HV
The Sungrow battery is a flexible and cost-effective energy storage solution designed to work seamlessly with solar systems. Known for its reliability and efficiency, it allows homeowners to store excess solar power during the day and use it when energy demand is higher or during blackouts.
With its modular design, you can easily scale up storage capacity as your energy needs grow. Plus, Sungrow batteries come with smart monitoring features, so you can track performance and manage energy use conveniently through an app.
- Capacity: 9.6–25.6 kWh (modular)
- Chemistry: Lithium iron phosphate (LFP)
- Warranty: 10 years
Sungrow is known for reliability and affordability. The SBR HV battery is modular, letting you add more storage over time without replacing the whole system.
Key Benefits: - Expandable up to 25.6 kWh, ideal for growing families.
- 100% depth of discharge ensures maximum use of stored energy.
- Affordable compared to premium options.
- Compatible with most hybrid inverters.
3. LG RESU Prime (10H / 16H)
The LG RESU Prime is a powerful home battery designed for households with higher energy needs. With capacities up to 16 kWh, it provides plenty of storage for running appliances, charging devices, and keeping your home powered even during outages.
Built with advanced lithium-ion technology, the RESU Prime offers long-lasting performance, high efficiency, and a compact design that fits neatly into most homes. It’s an excellent choice for families wanting reliable backup power and greater energy independence.
- Capacity: 9.8–16 kWh
- Chemistry: Lithium-ion
- Warranty: 10 years
LG brings its reputation for advanced electronics into energy storage. The RESU Prime series is compact, efficient, and stylish.
Key Benefits: - Compact, wall-mounted design that saves space indoors or outdoors.
- High efficiency reduces wasted energy.
- Designed for both new installations and retrofits.
- Strong safety and brand reliability.
4. BYD Battery-Box Premium (HVS / HV)
The BYD Battery-Box Premium is a modular solar battery system that grows with your energy needs. 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.
Known for its strong performance and high safety standards, the Battery-Box Premium is perfect for both residential and commercial use. With reliable backup power and smart energy management, it helps you maximise solar savings while reducing your reliance on the grid.
- Capacity: 5–12+ kWh (expandable to 66 kWh for large systems)
- Chemistry: Lithium iron phosphate (LFP)
- Warranty: 10 years
BYD batteries are trusted worldwide for durability and adaptability. Their modular design means you can start small and add more capacity later.
Key Benefits: - Rugged, IP-rated for tough Aussie weather.
- Highly scalable for larger homes or small businesses.
- Excellent round-trip efficiency (90%+).
- Known for long-term reliability.
5. Alpha ESS Smile Series (Smile 5 / B3)
The Alpha ESS battery is designed to make solar energy storage simple, efficient, and cost-effective. With sleek all-in-one systems, it combines a battery, inverter, and smart energy management in one unit. Homeowners can store excess solar power for use at night or during blackouts, helping to cut electricity bills and boost energy independence. Alpha ESS batteries are also compatible with Virtual Power Plant (VPP) programs, giving you the chance to earn extra by supporting the grid.
- Capacity: 10+ kWh
- Chemistry: Lithium iron phosphate (LFP)
- Warranty: 10 years
Alpha ESS has built a strong footprint in Australia, offering affordable yet full-featured hybrid battery systems.
Key Benefits: - All-in-one hybrid system with inverter and smart controls.
- Cost-effective compared to premium brands like Tesla.
- Weather-resistant and suitable for outdoor installs.
- Easy monitoring through Alpha Cloud software.
6. Enphase IQ Battery 5P
The Enphase IQ Battery is a compact and modular home energy storage system designed for maximum flexibility. Its small size makes it easy to install in almost any home, and you can add more units as your energy needs grow. Built with advanced safety features and lithium iron phosphate (LFP) technology, it delivers reliable performance with a long lifespan.
- Capacity: 5 kWh per unit (modular)
- Chemistry: Lithium iron phosphate (LFP)
- Warranty: 15 years
The Enphase IQ 5P is one of the most reliable small modular batteries available. Ideal for step-by-step expansion and households that want a long-term investment.
Key Benefits: - Industry-leading 15-year warranty for peace of mind.
- Modular units allow households to expand slowly.
- Great for retrofitting into existing solar systems.
- Robust app monitoring with the Enphase Enlighten system.
7. Sonnen (Eco / EVO)
The Sonnen Battery is a smart, sustainable solution for storing energy, especially for homes with solar panels. Made by the German company Sonnen, it lets you store extra electricity during the day and use it when the sun isn’t shining, like at night or on cloudy days.
Not only is the system energy-efficient and long-lasting, but it also connects to your home’s smart tech, making it easy to manage your power use. Plus, Sonnen’s software helps you get the most out of your energy, cutting down on both your electricity bills and your environmental impact. It’s a great step towards living off the grid and becoming more energy independent.
- Capacity: 5–15 kWh
- Chemistry: Lithium iron phosphate (LFP)
- Warranty: 10 years
Sonnen is a premium German battery manufacturer known for quality and VPP-ready solutions.
Key Benefits: - Excellent build quality and long operational life.
- Designed to integrate with Virtual Power Plants (VPPs).
- Sleek indoor-friendly design.
- Reliable performance in Australian conditions.
8. Redback Smart Hybrid System
The Redback Smart Hybrid System is an advanced solar energy solution designed to make your home more energy-efficient and self-sufficient. It combines solar panels with a hybrid inverter and battery storage, allowing you to generate, store, and manage your own energy.
The system automatically decides when to use your stored power, when to draw from the grid, and even when to sell excess energy back. With a user-friendly app, you can monitor and control everything from your phone.
- Capacity: 9.6–14.2 kWh
- Chemistry: Lithium iron phosphate (LFP)
- Warranty: 10 years
Designed in Brisbane, Redback batteries are built specifically for Australian weather and lifestyle.
Key Benefits: - Hybrid system includes inverter, making installation simpler.
- Seamless blackout protection.
- Designed for harsh Aussie climates.
- Strong local customer service and support.
9. Sigenergy Battery (SigenStor)
The Sigenergy Battery is a smart energy storage solution designed to work seamlessly with solar power systems. It stores excess energy generated by your solar panels, so you can use it whenever you need it, whether it’s at night or during power outages. The battery is compact, durable, and built for long-term performance, making it a reliable addition to any home or business looking to become more energy-independent.
With its easy-to-use monitoring app, you can track your energy usage and storage in real-time, giving you complete control. The Sigenergy Battery isn’t just about saving money, it’s about making your home or business more sustainable and less reliant on the grid.
- Capacity: 8–48 kWh (modular)
- Chemistry: Lithium iron phosphate (LFP)
- Warranty: 10 years
A newcomer with futuristic features, Sigenergy offers large-scale modular storage with AI integration.
Key Benefits: - AI-powered controls optimise usage and extend lifespan.
- EV fast-charging capability for households with electric cars.
- Massive scalability for big households or small businesses.
- Smart app interface with advanced energy management.
10. Budget-Friendly Options (Pylontech, Growatt, Huawei)
- Capacity: 2.4–15 kWh (depending on model)
- Chemistry: Lithium iron phosphate (LFP)
- Warranty: 7–10 years
For households that want an affordable entry into storage, these brands deliver solid performance at lower cost.
Key Benefits: - Pylontech US2000C: Entry-level 2.4 kWh modules—perfect for light storage.
- Growatt ARK / Sungrow SBR096: Mid-tier, modular and reliable.
- Huawei LUNA2000: Sleek, AI-enhanced storage with expandable design.
📊 Solar Battery Comparison Table (Australia 2025)
| Rank | Battery Model | Capacity (kWh) | Chemistry | Warranty | Best For |
|---|---|---|---|---|---|
| 1 | Tesla Powerwall 3 | 13.5 | Lithium-ion | 10 yrs | Premium all-round performance |
| 2 | Sungrow SBR HV | 9.6–25.6 (modular) | LFP | 10 yrs | Scalable, affordable families |
| 3 | LG RESU Prime | 9.8–16 | Lithium-ion | 10 yrs | Compact design, trusted brand |
| 4 | BYD Battery-Box | 5–66 (modular) | LFP | 10 yrs | Rugged, expandable for large homes |
| 5 | Alpha ESS Smile Series | 10+ | LFP | 10 yrs | Budget-friendly all-in-one |
| 6 | Enphase IQ 5P | 5 (expandable) | LFP | 15 yrs | Long warranty, modular retrofits |
| 7 | Sonnen (Eco / EVO) | 5–15 | LFP | 10 yrs | Premium German quality, VPP-ready |
| 8 | Redback Smart Hybrid | 9.6–14.2 | LFP | 10 yrs | Aussie-made, blackout backup |
| 9 | Sigenergy SigenStor | 8–48 (modular) | LFP | 10 yrs | Tech-driven, EV integration |
| 10 | Pylontech / Growatt / Huawei | 2.4–15 | LFP | 7–10 yrs | Entry-level, affordable options |
Why Invest in a Solar Battery?
Regardless of which battery you choose, all offer these core advantages:
- ✅ Lower electricity bills by using stored solar instead of grid power.
- ✅ Energy independence from rising power costs.
- ✅ Blackout protection for essential appliances.
- ✅ Better ROI on solar panels by maximising self-consumption.
- ✅ Eligibility for rebates (up to 30% off under new 2025 subsidy schemes).
What Are the Main Benefits of a Solar Battery?
Adding a solar battery to your home doesn’t just make your solar system smarter, it makes your energy use more efficient and cost-effective. Here are the key benefits:
1. Lower Energy Bills
Instead of sending your excess solar power straight back to the grid, a battery lets you store it for later. That means you can use your own solar energy at night when electricity is usually more expensive. The result? Smaller power bills and faster returns on your solar investment. You can even estimate your potential savings with our Battery Payback Calculator.
2. Backup Power During Outages
When the grid goes down, a solar battery can keep your lights, fridge, and essential appliances running. It’s peace of mind knowing your home won’t be left completely in the dark during blackouts.
3. Earn from Virtual Power Plants (VPPs)
Some energy providers run Virtual Power Plant (VPP) programs, where your battery is connected with others in a network to support the grid during peak demand. In return, you’re rewarded with credits or payments. It’s like renting out a little slice of your battery’s power without lifting a finger.
4. A Smaller Carbon Footprint
By relying more on your own solar power and less on fossil-fuel-generated electricity, you cut down your carbon emissions. A battery helps you get closer to running your home entirely on renewable energy.
Adding a Battery to an Existing Solar System (Retrofits)
If you already have solar panels, you might be asking: Which battery will work best with my system? The answer depends on what type of inverter you have.
- For most existing systems: You’ll likely need an AC-coupled or all-in-one battery with a built-in inverter. These are versatile and compatible with almost any setup since they manage their own power conversion. Popular options include:
- Alpha ESS
- Tesla Powerwall
- Sigenergy
- If you have a hybrid inverter: You’re in luck! You can install a DC-coupled battery, usually from the same manufacturer as your inverter. This type of setup is usually cheaper, easier to integrate, and can be monitored through the same app as your solar system.
Final Conclusion
For homeowners who want the best overall performance, the Tesla Powerwall 3 is the clear winner. If you’re seeking affordable scalability, look at Sungrow or Alpha ESS. For those who want long-term security, the Enphase IQ 5P with its 15-year warranty is hard to beat. And if you’re after a future-ready system, Sigenergy offers exciting tech features like EV fast-charging and AI optimisation.
With government rebates in place, 2025 is shaping up to be the perfect year to invest in a solar battery and take control of your household energy.
Get a Quote 
