Solar Battery Group reviews are mostly positive: as at November 2026 the Box Hill, Victoria battery retailer holds 4.5 stars from 1,455 Trustpilot reviews, 4.4 from 1,640 on ProductReview.com.au and 4.4 from 210 ratings on SolarQuotes. Solar Battery Group is a trading name of Solar SG Pty Ltd (ABN 86 610 972 686) and sells mainly Alpha ESS and Ambrion batteries across most states. Our verdict: it is a real, long-running and well reviewed company, with a recurring weak spot in after-sales support once a battery has a fault. We found no regulator action against it. It is not currently in our directory, so there is no Solar Cobber listing to link. This is independent desk research; Solar Cobber did not contact Solar Battery Group and was not paid for this review.
Key facts
- Solar Battery Group is a trading name of Solar SG Pty Ltd, ABN 86 610 972 686, an Australian private company with an active ABN since 25 February 2016, according to ABN Lookup in November 2026.
- Solar Battery Group holds 4.5 out of 5 on Trustpilot from 1,455 reviews, 4.4 from 1,640 reviews on ProductReview.com.au and 4.4 from 210 ratings on SolarQuotes, as at November 2026.
- Solar Battery Group’s published warranty notice promises 10 years on both the product and the installation workmanship for new orders completed after November 2024, and the warranty is given by Solar SG Pty Ltd.
- Solar Battery Group says it has completed more than 30,000 installations and calls itself Australia’s largest dedicated solar battery installer; we could not verify either claim independently.
- Solar Battery Group lists Alpha ESS, Ambrion, Tesla, Anker, Sigenergy, Fox ESS, Growatt and SAJ batteries on its website in November 2026, and says it is a distributor of Ambrion Raybox batteries.
- We found no public enforcement action by the Clean Energy Regulator, the ACCC or a state fair trading agency against Solar Battery Group or Solar SG Pty Ltd as at November 2026.
Solar Battery Group at a glance
The table below summarises Solar Battery Group’s public details, checked in November 2026. Company statements are marked as such.
| Item | Detail |
|---|---|
| Founded | 2014, according to a RenewEconomy press release dated 12 November 2019; the company’s About page says it has served Australian homes for more than 10 years |
| Head office | 1/990 Whitehorse Road, Box Hill VIC 3128 (SolarQuotes listing); the ABN record shows a New South Wales state with postcode 2000 |
| Legal entity and ABN | Solar SG Pty Ltd, ABN 86 610 972 686, active since 25 February 2016 (ABN Lookup). “Solar Battery Group” has been a registered business name since 3 September 2021 |
| Other registered business names | Solar Service Group (2016), Sunbank Solar (2017), Southaus Solar (2019) (ABN Lookup) |
| States served | SolarQuotes lists SA, NSW, VIC, WA, QLD and Tasmania; the company website has pages for Sydney, Melbourne, Brisbane, Adelaide, Perth, the ACT and Tasmania |
| Ownership | Founders named in 2019 were Leon Siebel and David Rogers; current shareholders are not published |
| What it sells | Batteries, solar panels, inverters, microinverters, heat pumps and HVAC (company website) |
| Battery brands | Alpha ESS, Ambrion Raybox, Tesla Powerwall 3, Anker SOLIX X1, Sigenergy Sigenstor, Fox ESS, Growatt, SAJ (company website) |
| Warranty | 10 years product and 10 years workmanship on orders completed after November 2024 (company warranty notice) |
| Trustpilot | 4.5 from 1,455 reviews, November 2026 |
| ProductReview.com.au | 4.4 from 1,640 reviews, 88% positive, November 2026 |
| SolarQuotes | 4.4 from 210 ratings, latest review dated 27 October 2026 |
| Not confirmed; we could not read the Google Business Profile count in November 2026 | |
| Accreditation (as stated) | Says it follows the New Energy Tech Consumer Code, installs Clean Energy Council approved products with accredited installers, and is a Platinum member of the Smart Energy Council |
Solar Cobber does not verify accreditation. Check the Clean Energy Council approved retailer list and the Solar Accreditation Australia installer register yourself before you sign.
Is Solar Battery Group any good?
Solar Battery Group is a good choice for a household that wants a mainstream battery installed quickly at a competitive price, and a riskier one if you expect fast help after a fault. Across three platforms the sales and installation experience scores about 4.5 out of 5, while the weakest-scoring themes are customer service and the speed of warranty repairs.
The ratings are strong at scale. On SolarQuotes, reviewers score installation 4.5 and quality of system 4.6, but customer service 4.3. On ProductReview.com.au the category scores are 4.6 for installation and job satisfaction, and 4.4 for customer service and timeliness. That pattern, strong installs and weaker follow-up, is also what the complaints describe.
Read the ratings with care. SolarQuotes notes that many of the positive reviews on its page are marked as incentivised, meaning the company offered something in return for the review. Our guide to the five-star problem explains why a high rating alone is weak evidence.
View the data as a table
| SolarQuotes rating | |
|---|---|
| Solar Battery Group | 4.4 |
| Solargain | 4.3 |
| 1KOMMA5 | 4.3 |
| Sunboost | 3.5 |
Solar Battery Group scores 4.4 on SolarQuotes, slightly above Solargain and 1KOMMA5 at 4.3 and well above Sunboost at 3.5, but from a much smaller sample (210 ratings against 1,121 for Solargain).
What the star breakdown shows
The two platforms that publish a star breakdown agree: roughly 85 to 90 per cent of ratings are 4 or 5 stars, and about 8 to 11 per cent are 1 or 2 stars.
- Trustpilot (1,455)
- SolarQuotes (210)
Source: Trustpilot (percentages as shown) and SolarQuotes (121, 60, 5, 11 and 13 ratings), read November 2026. Solar Cobber calculation for SolarQuotes: each star count divided by 210.
View the data as a table
| Trustpilot (1,455) | SolarQuotes (210) | |
|---|---|---|
| 5 star | 73.0% | 57.6% |
| 4 star | 16.0% | 28.6% |
| 3 star | 2.0% | 2.4% |
| 2 star | n/a | 5.2% |
| 1 star | 8.0% | 6.2% |
Trustpilot shows 73% five-star reviews, while SolarQuotes shows 57.6%, so the SolarQuotes crowd is a little harder to impress. ProductReview.com.au does not publish a per-star split on the listing page, so we have not charted it.
What customers praise
Public reviews on Trustpilot, ProductReview.com.au and SolarQuotes praise the same things, read in November 2026:
- Installation crews. Reviewers describe installers as punctual, courteous and tidy, with packaging and rubbish cleared away, and installs completed in a day or a few days.
- Sales advice. Many describe sales staff as informative and not pushy, with clear explanations of quotes and rebates.
- Results. Reviewers report lower bills, blackout protection on systems with backup wired in, and a monitoring app they like.
- Price. Reviewers regularly call quotes competitive. SolarQuotes says its reviewers report paying about A$5,200 to A$9,000 for systems from 4 kW to 15 kW, depending on hardware and installation difficulty.
Common Solar Battery Group complaints
The most common Solar Battery Group complaints are about what happens after installation, not about the sales process. These are patterns across Trustpilot, ProductReview.com.au and SolarQuotes in November 2026, not findings about any single case.
- Slow after-sales and fault resolution. The largest theme across all three platforms: long phone waits, unanswered emails, and faults taking months to fix. One SolarQuotes review dated 5 October 2026 describes a battery fault unresolved for several months. Some Trustpilot reviewers mention difficulty reaching overseas support teams.
- Gaps between order and installation. Reviewers describe long waits with little communication, which one attributed to demand from the federal rebate.
- Commissioning and mess. Reports of masonry dust left behind and a system not fully commissioned on the first visit, including a SolarQuotes review dated 23 October 2026.
- Delays to inspections and electrical safety certificates. ProductReview.com.au reviewers say these left some systems switched off for a time.
- Quote versus invoice and refunds. A smaller number report a mismatch between the quote and the invoice, an inverter they believed was undersized, or a refund that was never paid.
On responses, Trustpilot shows the company replying to about 45% of negative reviews, usually within about a month, with a templated apology that asks for an order number and moves the conversation offline. It also replies to some negative ProductReview.com.au reviews. We cannot see how those cases ended.
SolarQuotes also notes that the company is known for mailing letters offering “special deals” on battery systems. Treat any mailed price as a prompt to get a written quote, not as the price.
Products and brands Solar Battery Group installs
Solar Battery Group installs mostly Alpha ESS and Ambrion batteries. SolarQuotes counts 71 Alpha ESS and 24 Ambrion battery installs among its reviews, and 14 Alpha Technologies, 7 Fronius and 4 GoodWe inverter installs.
The company’s website compares ten battery models, all with a stated 10 year warranty. Its own page lists the capacities below, which are the figures it publishes (we have not confirmed whether each is usable or nominal capacity).
Source: Solar Battery Group compare batteries page, read November 2026.
View the data as a table
| Listed capacity | |
|---|---|
| Alpha ESS Smile-G2-B5 | 15.00 kWh |
| Alpha ESS Smile-M5 | 13.90 kWh |
| Tesla Powerwall 3 | 13.50 kWh |
| Alpha ESS Smile-13.3 | 13.30 kWh |
| Ambrion Raybox HS2 | 10.24 kWh |
| Alpha ESS Smile-5 | 10.10 kWh |
| Sigenergy Sigenstor | 8.00 kWh |
| Alpha ESS B3 Plus | 5.04 kWh |
| Anker SOLIX X1 | 5.00 kWh |
| SAJ B2 | 5.00 kWh |
Most of the range sits between 5 kWh and 15 kWh, which matches the first 14 kWh band where the federal discount is worth the most. Ambrion makes the Raybox HS2; the company describes itself as a distributor of it, and we found no statement that Solar Battery Group owns the Ambrion brand.
We have reviewed several products it sells: the AlphaESS SMILE-G3, the Tesla Powerwall 3, the Sigenergy SigenStor and the Anker SOLIX X1. Our battery sizing guide helps check the size you are quoted.
Solar Battery Group prices
Solar Battery Group does not publish fixed prices on its website, so we cannot give a list price. It advertises a Best Price Guarantee and a 30% federal discount, and it invites a free quote.
The only price evidence we found is from reviewers. SolarQuotes says its reviewers report paying about A$5,200 to A$9,000 for systems from 4 kW to 15 kW, as at November 2026. We could not confirm whether those figures are before or after the federal discount.
For context, our battery rebate guide gives indicative installed prices of A$9,000 to A$13,000 before the rebate for 10 kWh, and A$6,300 to A$9,100 after it.
What the federal discount is worth on a Solar Battery Group quote
The Cheaper Home Batteries Program discount is worth about A$258 to A$272 per usable kWh on the first 14 kWh for installs between 1 May and 31 December 2026, and it steps down on 1 January 2027. Our state battery rebate guide has the full schedule.
Solar Cobber calculation. Certificates = usable kWh in the first 14 kWh multiplied by the 6.8 factor, plus kWh from 14 to 28 multiplied by 6.8 and by 60%. Value = whole certificates multiplied by A$38 to A$40 per certificate.
| Usable capacity | STCs (whole certificates) | Discount at A$38 | Discount at A$40 |
|---|---|---|---|
| 5 kWh | 34 | A$1,292 | A$1,360 |
| 10 kWh | 68 | A$2,584 | A$2,720 |
| 13.5 kWh | 91 | A$3,458 | A$3,640 |
| 20 kWh | 119 | A$4,522 | A$4,760 |
- At A$38 per STC
- At A$40 per STC
Source: Solar Cobber calculation from the Cheaper Home Batteries Program factor (6.8, May to December 2026) and size tiers, as set out in our state battery rebate guide. Certificate prices are the range used in our rebate guide; the installer decides the price it passes on.
View the data as a table
| At A$38 per STC | At A$40 per STC | |
|---|---|---|
| 5 kWh | A$1,292 | A$1,360 |
| 10 kWh | A$2,584 | A$2,720 |
| 13.5 kWh | A$3,458 | A$3,640 |
| 20 kWh | A$4,522 | A$4,760 |
A 20 kWh battery earns only about 1.75 times the discount of a 10 kWh one, because kWh above 14 earn 60% of the rate. Ask any quote to show the certificate count and the dollar value passed on, so you can see whether the full discount is in the price.
Warranty and after-sales support
Solar Battery Group’s published warranty notice gives 10 years on the product and 10 years on workmanship from the date of installation, for new orders completed after November 2024. The notice says Solar SG Pty Ltd provides the warranty and that Solar Battery Group will repair or replace a defective product at no charge during the period.
Exclusions in the notice include work or changes by third parties, products it did not supply, and events such as possum damage, extreme weather and natural disasters. Customers also keep their rights under the Australian Consumer Law.
Because the product warranty and workmanship warranty depend on Solar SG Pty Ltd staying in business, ask what happens if it closes. A manufacturer’s own warranty may continue, but the installer’s workmanship promise usually ends. Our solar company failures tracker explains the risk. Given the after-sales complaints above, also ask for the support phone number and the target response time in writing.
Company background
Solar SG Pty Ltd was founded in Melbourne in 2014 by Leon Siebel and David Rogers, according to a RenewEconomy press release dated 12 November 2019. That release said the company then traded as Solar Service Group, Sunbank Solar and Southaus Solar, and appointed Rod Woolley as chairman and Donna Freer as chief executive. ABN Lookup confirms those three business names alongside “Solar Battery Group”, which was registered on 3 September 2021.
One ProductReview.com.au listing discussing a company at the same Box Hill address appears under the older Sunbank Solar name. If you search for reviews, look under all four names.
We found no public enforcement action against Solar Battery Group or Solar SG Pty Ltd as at November 2026. The Clean Energy Regulator’s July to September 2026 compliance update does not name it, and our searches of the ACCC and state consumer agency notices turned up nothing. Customer complaints alone are not evidence of wrongdoing, and an absence of action is not a guarantee of quality.
Solar Battery Group vs alternatives
The table compares Solar Battery Group with three national retailers we have reviewed, using SolarQuotes ratings and company-stated warranties, all as at November 2026.
| Company | SolarQuotes rating | Workmanship warranty (as stated) | Best for | Our review |
|---|---|---|---|---|
| Solar Battery Group | 4.4 from 210 | 10 years (orders after Nov 2024) | Battery-first buyers, retrofits to existing solar | This page |
| Solargain | 4.3 from 1,121 | 5 years, 10 years on mounting frame | Established national solar and battery installer | Solargain reviews, directory |
| 1KOMMA5 | 4.3 from 742 | 30 years (advertised) | Buyers wanting a bundled battery and Amber tariff | 1KOMMA5 reviews |
| Sunboost | 3.5 from 328 | 10 years (published terms) | Buyers chasing price | Sunboost reviews |
Compare at least three written quotes, not just ratings. Our guide to comparing solar quotes lists what to line up, and the Melbourne battery installer guide names local alternatives.
Who Solar Battery Group suits, and who should look elsewhere
Solar Battery Group suits you if:
- You already have solar and want an AC-coupled battery retrofit.
- You want a mainstream brand such as Alpha ESS or Tesla at a competitive price.
- You value a long published warranty and a large installer with high volumes.
Look elsewhere, or negotiate harder, if:
- You want a named local installer you can ring directly after the job.
- You need a custom system or complex backup wiring and want an engineer’s design in writing.
- You are worried about slow fault repairs, since that is the most common complaint.
Questions to ask Solar Battery Group before you sign
- What is the exact battery model, and what is its usable capacity in kWh?
- How many STCs are being created, and what dollar value is passed on in my price?
- Who is the licensed installer, what is their accreditation number, and is the company on the Clean Energy Council approved retailer list?
- Is the 10 year workmanship warranty in my contract, and does it say what happens if Solar SG Pty Ltd stops trading?
- What is the target response time for a battery fault, and who do I call?
- Is blackout protection included in the quote, or is it an optional add-on with extra electrical work?
- How long between signing and installation, and who arranges the network approval and electrical safety certificate?
- What exactly does the Best Price Guarantee cover, and what must I provide to claim it?
For more, read how to choose a solar installer.
FAQ
Is Solar Battery Group legit?
Yes, Solar Battery Group is a legitimate registered business: it trades under Solar SG Pty Ltd, ABN 86 610 972 686, which has been active since February 2016 according to ABN Lookup. It has thousands of public reviews and we found no regulator action against it as at November 2026. Check its accreditation and read your contract before signing.
Are Solar Battery Group reviews good?
Yes, they are mostly positive. As at November 2026 the company holds 4.5 from 1,455 Trustpilot reviews, 4.4 from 1,640 on ProductReview.com.au and 4.4 from 210 on SolarQuotes. Many positives praise installation, and SolarQuotes notes that many are incentivised.
What are the most common Solar Battery Group complaints?
The most common complaints are slow after-sales support and slow fault repairs, followed by long waits before installation and untidy or incomplete commissioning. These are patterns across Trustpilot, ProductReview.com.au and SolarQuotes, not proven faults. The company replies to some negative reviews.
Who owns Solar Battery Group?
Solar Battery Group is owned by Solar SG Pty Ltd, an Australian private company. A 2019 RenewEconomy press release named founders Leon Siebel and David Rogers, but current shareholders are not published. We could not confirm who owns it today.
Is Solar Battery Group CEC approved?
The company says it follows the New Energy Tech Consumer Code and installs Clean Energy Council approved products through accredited installers. Solar Cobber does not verify this, so check the Clean Energy Council approved retailer list and the Solar Accreditation Australia register yourself.
How much does Solar Battery Group charge?
Solar Battery Group does not publish prices. SolarQuotes says its reviewers report paying about A$5,200 to A$9,000 for systems from 4 kW to 15 kW. Ask for a written quote showing the federal discount separately.
What happens to my warranty if Solar Battery Group closes?
The 10 year workmanship warranty is given by Solar SG Pty Ltd, so it would generally end if the company stopped trading. Manufacturer product warranties may continue with the manufacturer’s Australian support. Ask about this before you sign.
Which batteries does Solar Battery Group install?
It installs mainly Alpha ESS and Ambrion batteries, and its website also lists Tesla Powerwall 3, Anker SOLIX X1, Sigenergy Sigenstor, Fox ESS, Growatt and SAJ models. SolarQuotes counts 71 Alpha ESS and 24 Ambrion installs among its reviews.
Sources
- Solar Battery Group website, about page, warranty notice, compare batteries and national battery rebate page, read November 2026
- ABN Lookup record for ABN 86 610 972 686, November 2026
- Trustpilot: Solar Battery Group, November 2026
- ProductReview.com.au: Solar Battery Group, November 2026
- SolarQuotes: Solar Battery Group installer review, November 2026
- RenewEconomy: Solar SG Pty Ltd appoints new chairman and CEO, 12 November 2019
- Clean Energy Regulator: solar industry under compliance spotlight, latest quarterly update, October 2026
About this review
This review was written by the Solar Cobber editorial team from independent desk research checked in November 2026. Solar Cobber is a free directory that may earn referral or advertising fees from installers; commercial relationships never affect our content. This is general information, not financial advice. To report a correction, contact us.
Filed under Solar Installers
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