According to installers we trust, what are the best home battery brands in Australia in 2025?
Two brands tied for this year’s top spot – read on to discover the victorious duo.
How Did We Survey Our Installers?
We asked the 594 installers in the SolarQuotes installer network one question:
If installing a system on your own house today, what brand’s batteries would you use?
161 replied. Here are the results – including the two brands sharing the crown.
Best Home Batteries In Australia: 2025
Best Home Batteries 2025: First place – Tesla & Sungrow
Me and my Powerwall – going strong since 2016!
Last year, Tesla dominated with 53% of the vote, while Sungrow barely secured third with 10%.
It’s remarkable how Sungrow has closed the gap with Tesla, which won gold every year since 2021. In a way, it’s just as interesting to see how far Tesla has fallen—despite still taking first place!
Is it Elon’s transformation into a hardcore Trumper? Is Tesla’s new Powerwall 3 not as good as the Powerwall 2? Is Sungrow simply offering a great product for a great price?
I’ve had my Powerwall 2 since 2016, and I installed a Sungrow battery on my rental property in 2023.
Both have performed well, with the Tesla App being a joy to use—but it’s not without its bugs. For example, the Tesla App’s ‘Charge-On-Solar’ feature broke about three months ago and refuses to charge my car from my 20kW of solar. I’ve now given up on it and pay $7 per month to ChargeHQ for solar charging instead.
The Sungrow is an excellent battery, although the Sungrow hybrid inverter has had some teething problems. Its modular architecture is a great feature. I added an extra module —and it was as easy as advertised.
Best Home Batteries 2025: Second place – Sigenergy
Sigenergy’s Sigenstor in action
In my Best Inverters for 2025 blog, I mentioned that Sigenergy is the new kid on the block in Australia. It seems to have taken installers by storm, rocketing to second place in its first year with 17% of the vote.
I’d heard the buzz about their Sigenstore all-in-one system—especially its optional 25kW bi-directional DC EV charger—so I had to see one being installed.
I saw firsthand how easy they were to install and commission—everything worked flawlessly on the first try.
Sigenergy also appears increasingly often in quotes that my team reviews, proving it’s more than a niche player.
With their momentum, I wouldn’t be surprised if they take first place next year. I wouldn’t be too upset to see first place go from Elon’s Sieg heil to China’s SigEnergy1.
Best Home Batteries 2025: Third place – BYD.
Fronius Gen24 inverter and BYD battery install, done by DJM Electrical
Falling from second place last year, BYD has taken third with 12% of the vote.
Austrian Fronius and Chinese BYD partnered years ago. BYD batteries are designed to DC-couple with Fronius’ latest Gen24 inverter range.
From everything I’ve heard, they’re a great battery, so you’d need a pretty compelling reason to get anything other than a BYD if you’re getting a Fronius inverter.
What Do These Batteries Cost?
My battery storage comparison table shows pricing for all the winners, plus heaps of other brands.
To keep things as apples-to-apples as possible, I’ll use the 13.5kWh of storage the Tesla Powerwall 3 has as the benchmark to compare the other modular battery brands:
- Tesla Powerwall 3 (13.5 kWh) – $13,600
- Sungrow SBR HV (12.8 kWh) – $9,500
- Sigenergy Sigenstor (13 kWh) – $11,500
- BYD HVM (13.8 kWh) – $10,600
Note that these prices don’t include installation costs, which generally run around $2,000 for the typical home. Expect to pay more if something about your place makes installing a battery tricky.
What Installers Use The Winning Brands?
If you’re looking to get quotes from installers who sell the winning brands, visit my cities list, choose your city, and use the filters to select only the brands you want:
Then, select up to three installers, and hit ‘Get quotes from selected companies’.
Congratulations to this year’s winners.
For more of the best picks from the 2025 Installers’ Choice Awards, take a look at the Best Solar Panels and Best Solar Inverters category winners revealed in previous weeks. Stay tuned for Best EV Chargers next week.
Footnotes
- And I welcome all the measured comments this post will get from any remaining Elon fans ↩
About Finn Peacock
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Any thoughts on Sungrow promoting and stating in its data sheet that battery has 100% depth of discharge capability and 100% usable energy when in fact it does not; keeping 5% in a reserve that is hidden, hidden from would be purchasers?
This 5% is not something a homeowner can can over ride and change to 0% even if they were foolish enough to do so.
At least other brands are up front about this. Yet Sungrows deceptive conduct is not called out.
I encourage Sungrow to be honest with would-be customers and change the data sheet.
Hi Neil – one of our installers who does Sungrow comments
“The default State of Charge (SOC) lower limit for Sungrow batteries is set to 5%. While installers can modify this setting, and customers have the option to reduce it to 0%, we recommend maintaining the 5% default limit for several reasons:
Preventing complete discharge helps avoid the battery going completely flat
Regularly draining the battery to 0% can accelerate the deterioration of the battery’s State of Health (SOH)
Maintaining a minimum charge level is standard across all battery brands to optimize battery life and performance.”
Although this can be overridden, I agree Sungrow should a) change the datasheet to be 5% lower usable b) lock the 5%.
PS.
Even in your own solar batteries comparison table you state Sungrow’s “USABLE ” capacity is the same as its nominal capacity.
It clearly is not. I suggest, you should also change your table as it misleads purchasers into thinking that Sungrow have some technology that others don’t or the nominal capacity is understated, which is what I naively thought when deciding to buy Sungrow. Would seem this is Sungrow’s intention and even the reputable SolarQuotes fell for it.
I agree, we’ll change the comparison table. We don’t always get it right.
Thanks for this review. As an owner of two Tesla cars, I can vouch for the harm that the Elon factor is doing to the Tesla brand. Fellow Tesla owners tell me they too are uncomfortable with the Tesla brand now that Musk is showing his true colours.
We too, are uncomfortable about owning a Tesla, despite the fact we love driving it. Musk has shown himself to be a dangerous individual with scant to no regard for democratic processes. I hope he and Trump have a falling out sooner rather than later. Our next EV will not be a Tesla. As for the Powerwall, I will be considering other manufacturers.
Indeed – it’s (the Elon factor) one of the main reasons we havn’t and won’t buy a Tesla (we’re about to buy what will be our 4th BEV)