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Australia’s sun-rich environment makes it the perfect place to leverage solar power, but a storage solution is critical to maximising the benefits of the sun’s energy. Choosing the right solar battery for your home or business can be daunting, so we’re helping your search by reviewing four of the best solar batteries for Australian residents.
Below, learn about EcoFlow’s four stand-out options, Australia’s strict battery standards, and the state rebates you can take advantage of no matter where you live.
EcoFlow’s Best Solar Batteries for Australia
- Best For Entry Level Use: EcoFlow DELTA 2
- Best For Expandable Home Backup: EcoFlow DELTA 2 Max
- Best For Whole Home Backup: EcoFlow DELTA Pro
- Best For Solar Energy Generation: EcoFlow DELTA 2 MAX + 220w Solar Panel
Best For Entry Level Use: EcoFlow DELTA 2
The EcoFlow DELTA 2 is ideal for entry-level home backup because of its compact and portable size, long-lasting battery, and expansion ability. At just 27 lbs (12 kg), it’s lighter than previous DELTA versions but doesn’t fall short of meeting your energy needs. Use it to power up 90% of household appliances, such as toasters, food processors, refrigerators, portable AC units (up to 13 devices at one time) and more. Its battery lasts six times longer than the competition, thanks to its LFP chemistry, so you’ll get more use out of each charge.
When drained, the battery can be recharged to 80% in as little as 50 minutes with AC power. Don’t have AC available? No worries. It works seamlessly with solar panels 400W and below.
If your off-grid needs aren’t significant now but could grow in the future, you’ll love the ability to pair it with the EcoFlow DELTA 2 Extra battery, EcoFlow DELTA Max Extra Battery, or even the EcoFlow Smart Extra Battery.
You can use the EcoFlow smartphone app remotely to monitor your energy usage and battery performance. Regarding safety, you’ll love the advanced battery management system (BMS) that ensures everything continues to run safely.
This petite yet powerful solar battery is perfect if it’s your first foray into solar energy.
Specifications
- Storage Capacity (Minimum): 1024Wh
- Storage Capacity (Maximum): 3kWh
- AC Output (Maximum): 1.8kW continuous output (2.7kW Surge)
- Solar Charge Capacity (Maximum): 500W max (11-60V, 15A)
- Weight: 27 lbs (12 kg)
- Dimensions: 15.7 x 8.3 x 11.1 in (40 x 21.1 x 28.1 cm)
- Operating Noise Level: ~50 decibels
- Charging Options: Solar/AC/Car Charger
- Multicharge Options? Yes
- Battery Chemistry: Lithium Iron Phosphate (LFP/LiFePO4)
- Cycle Life: 3000 Cycles to +/-80% Capacity
- Depth of Discharge: 100%
- Warranty: Five years (no cycle life restrictions)
- App Monitoring and Control?: Yes
Pros
- Balanced power-to-size ratio
- Affordable backup power source
- Adaptable capacity grows with your energy needs
- Quick recharge options
- Supports multiple devices at once
Cons
- Needs solar panels (not included) to preserve solar energy
- Not compatible with every device or appliance
- Extended-use run time is limited
Best For Expandable Home Backup: EcoFlow DELTA 2 Max
If you want a reliable energy source to draw from as backup power for your home if you lose power, the EcoFlow DELTA 2 Max should be your go-to solar battery. It was explicitly designed for higher-capacity needs, such as large home appliances for extended periods.
Building upon the original EcoFlow DELTA Max, this upgraded version has a new LFP battery, WiFi and Bluetooth connectivity, and the ability to add capacity to meet your needs. Expanding without purchasing a new solution is easy if your energy needs outgrow this power setup. Add up to two EcoFlow DELTA 2 Max Smart Extra batteries to expand your capacity to a whopping 6144Wh and keep your house running without solar power.
This kind of power also works well with other EcoFlow smart solutions, such as the EcoFlow Glacier Portable Refrigerator and the EcoFlow Wave 2 Portable AC. Need to recharge? With AC power or solar panels, you’ll be on your way within just a few hours.
Though the EcoFlow DELTA 2 Max is powerful, it won’t take up unnecessary space in your home, whether in use or storage. Its compact design is advantageous at home or on the go.
If you need reliable power to handle your sophisticated appliances easily, look no further than the EcoFlow DELTA 2 Max.
Specifications
- Storage Capacity (Minimum): 2048 Wh
- Storage Capacity (Maximum): 6kWh
- AC Output (Maximum): 2.4kW continuous output (3.4kW surge)
- Solar Charge Capacity (Maximum): 11-60V 15A, single port 500W; dual port 1kW
- Weight: 50.7 lbs (23 kg)
- Dimensions: 19.6 × 9.5 × 12 in (49.7 × 24.2 × 30.5 cm)
- Operating Noise Level: ~50 decibels
- Charging Options: Solar/AC/Car Charger
- Multicharge Options? Yes
- Battery Chemistry: Lithium Iron Phosphate (LFP/LiFePO4)
- Cycle Life: 3000 Cycles to +/-80% Capacity
- Depth of Discharge: 100%
- Warranty: Five years (no cycle life restrictions)
- App Monitoring and Control?: Yes
Pros
- Support all your devices at once and expand capacity as your needs grow
- The long-lasting battery can provide over a decade of use
- Recharge rapidly using AC, solar, and more
- Upgraded features
Cons
- Can be expensive to expand capacity with extra batteries
Best For Whole Home Backup: EcoFlow DELTA Pro
If your primary concern is a large and powerful battery that can run your entire home when outages strike, the EcoFlow DELTA Pro will be just the battery for you. It has you covered during extended blackouts, running 99.9% of your home’s most demanding appliances, such as refrigerators, laundry units, household lights, and even AC systems, while handling your phones and devices efficiently. And, with the ability to expand up to 25kWh, there’s hardly anything it can’t power.
Are you looking for a direct path to energy independence? This is it. Whether you want a reliable solution for your home or plan to take it with you in an RV, you’ll enjoy all the comforts of electricity with the EcoFlow DELTA Pro. (You can even recharge it at EV chargings along the way of your adventures.)
Though this battery works hard, it won’t die out on you early. Its long-lasting LFP battery ensures years of dependable use for all your outages. And, with the built-in BMS, you can trust that the battery will remain in good shape throughout its lifetime.
With all this power and capability, you’ll be surprised to find that it’s still compact, saving you space that you can use for other essentials.
Specifications
- Storage Capacity (Minimum): 3.6kWh
- Storage Capacity (Maximum): 25kWh
- AC Output (Maximum): 3.6kW continuous output (7.2kW Surge)
- AC Output (Maximum): Expandable to 7.2kW continuous output (14.4 kW surge) with 2 x EcoFlow DELTA Pro + Double Voltage Hub
- Solar Charge Capacity (Maximum): 1600W (11-150V⎓15A Max) per unit or 3600W with Double Voltage Hub + 2 × DELTA Pro (Max)
- Weight: 99 lbs (45kg)
- Dimensions: 25 x 11.2 x 16.4 inches (63.5 x 28.4x 42cm)
- Operating Noise Level: ~50 decibels
- Charging Options: Solar/AC/Car Charger/Smart Home Panel/EV Charge Station/Smart Generator (Dual Fuel)
- Multicharge Options? Yes
- Battery Chemistry: Lithium Iron Phosphate (LFP/LiFePO4)
- Cycle Life: 3000 Cycles to +/-80% Capacity
- Depth of Discharge: 100%
- Warranty: Five years (no cycle life restrictions)
- App Monitoring and Control?: Yes
Pros
- Sufficient power for the entire home or RV
- Built to be durable and long-lasting despite heavy use
- Control and monitor via smartphone
- Hands-off BMS keeps the battery safe and resilient
- Expandable as your needs grow
Cons
- Heavier than other models, but for good reason: to power 99.9% of appliances
- Unnecessary for anything besides whole-home backup
Best For Solar Energy Generation: EcoFlow DELTA 2 MAX + 400w Solar Panel
We already covered the EcoFlow DELTA 2 Max, so you know it’s your best bet for an expandable home backup, but what if you also want a solution that can produce energy that the battery can then store? When the electricity grid is out, you need alternative forms of energy generation.
Your wall outlets won’t work, so your options are usually generators. Fuel generators are noisy, polluting, and require fuel refills and maintenance. Solar generators, however, are quiet, safe for the environment, easy to maintain, and require no fuel to operate.
You can create your own solar generator by pairing the incredible EcoFlow DELTA 2 Max with an EcoFlow 400W Solar Panel. This generator will draw energy from the sun and store it safely so you can use it. The two components work together to create a source of power any time the sun is shining, plus a place to store excess energy that you can still draw from later (like at night or when the sky is cloudy) so you’ll never be in the dark, even during extended outages that leave other residents scrambling.
You get all the same benefits of the EcoFlow DELTA 2 Max as a portable power station, plus the ability to set up solar panels anywhere that’s most convenient and create your own sustainable and renewable power. You might even find that you prefer it to grid power, allowing you to embrace a new off-grid lifestyle.
Specifications
- Storage Capacity (Minimum): 2048 Wh
- Storage Capacity (Maximum): 6kWh
- AC Output (Maximum): 2.4kW continuous output (3.4kW surge)
- Solar Charge Capacity (Maximum): 11-60V 15A, single port 500W; dual port 1kW
- Weight: 50.7 lbs (23 kg)
- Dimensions: 19.6 × 9.5 × 12 in (49.7 × 24.2 × 30.5 cm)
- Operating Noise Level: ~50 decibels
- Charging Options: Solar/AC/Car Charger
- Multicharge Options? Yes
- Battery Chemistry: Lithium Iron Phosphate (LFP/LiFePO4)
- Cycle Life: 3000 Cycles to +/-80% Capacity
- Depth of Discharge: 100%
- Warranty: Five years (no cycle life restrictions)
- App Monitoring and Control?: Yes
- Rated Power: 400W
- Efficiency: 22.6 %
- Solar Cell Type: Monocrystalline Silicon
- Weight:35.3 lbs (16.0 KG)
- Folded Dimensions:41.7×24.4×1.0 in (105.8×62.0×2.5 cm)
- Unfolded Dimensions: 41.7×93,1×1.0 in (105.8×236.5×2.5 cm)
- Waterproof/Dustproof Rating: IP68
- Open Circuit Voltage: 48V (Vmp 41V)
- Short Circuit Current: 11A (lmp 9.8 A)
- Recommended Portable Power Station: EcoFlow DELTA Series
Pros
- Create and store energy in one compact system
- Monitor all generation, storage, and usage through the mobile app
- Other charging options still include AC and car charger
- Durable
- Expandable
Cons
- Won’t capture energy if the sun is not out
Australia’s Strict Battery Standards
Australia is stringent about solar battery safety and reliability. Under the Australian Standard AS5139, the country and continent have set forth regulations and requirements for installing and using battery storage systems.
First, any battery must be installed by a certified installer. They must have the proper knowledge and skills to safely and properly install it and complete a full installation report covering the battery’s specific location, size, and more. This regulation also includes safety measures the installer must use, including proper ventilation and fire protection measures such as safety switches.
Additionally, the AS5139 requires that any battery used be explicitly approved for use in AUS to prevent the installation of low-quality and unreliable options. Before approval, batteries undergo rigorous testing to meet strict performance and safety requirements before entering the market.
Other areas that AS5139 covers include:
- Labelling and warnings – labels for high-voltage risks must be apparent so owners know how to respond (isolate the battery if needed)
- Inspection and maintenance guidelines: Regular battery performance checks and compliance measures must be taken to keep batteries effective throughout their lifespan.
The AS5139 standard is updated and reviewed regularly to ensure it continues to follow technology’s advancements and changing power needs.
State Rebates for Solar Batteries in Australia
Australia wants you to go solar, so many states provide incentives and rebates if you install a solar battery in your home. These rebates, when applied to the batteries’ cost, make going solar much more accessible and affordable. Rebates are available in Victoria, New South Wales, the Australian Capital Territory, and Western Australia.
VIC
Victoria’s Solar Homes Program offers a rebate of up to $4,838 (up to 50% of the cost) to make a solar battery system more affordable. To meet eligibility for this rebate, you must find a certified installer to install a battery with a minimum 7kWh capacity in your owned or rented home. Victoria’s government hopes this incentive can help support the state’s goal to reach its 50% renewable energy goal by 2030.
NSW
New South Wales has a similar program known as the Empowering Homes Program. Instead of providing a direct rebate, it provides eligible households with an interest-free loan of $14,000 to help them install a solar battery storage system. You will need to repay the loan fully within a decade, but the program hopes to make solar batteries more accessible for homeowners. NSW also has renewable energy goals, and it hopes this scheme will allow it to reach a net-zero emissions target by 2050.
ACT
ACT’s rebate might not seem as robust as VIC’s, but it’s still substantial. You can get up to $825 per kilowatt–hour of solar energy storage you install. Choosing a home backup system with a high storage capacity like the EcoFlow DELTA Pro could add up to significant money knocked off your total out-of-pocket spend. This rebate has a cap of $4k per household, but it’s open to homeowners installing new or existing PV systems.
WA
Western Australia’s Small-scale Renewable Energy Scheme provides up-front incentives to go solar. You can earn small-scale technology certificates (STCs) based on how much energy you generate or displace, with one megawatt of renewable energy generated being awarded one STC. Homeowners and business owners can participate. Other financial incentives include feed-in tariffs, which pay you for the excess electricity you feed into the primary grid via your at-home solar energy system.
Final Thoughts
Investing in a solar battery in Australia is a smart move. You’ll be able to store the excess solar power your system generates and save money by taking advantage of the many financial incentive programs available.
With these EcoFlow models available, the strict safety standards set by AS5139, and state rebates, there’s never been a better time to make the switch. Explore EcoFlow’s Portable Power Stations and start your journey toward a greener future today.