Sonnen is a German battery manufacturer with a remarkable local connection — their batteries are assembled at a facility in Adelaide, South Australia, making Sonnen the only major battery brand with local Australian manufacturing. This isn’t just a marketing point; it means shorter supply chains, faster local warranty support and a genuine contribution to the SA economy.
Sonnen’s defining technical differentiator is cycle life. Where most residential batteries are warranted for 3,000–6,000 cycles, Sonnen’s products are guaranteed for up to 10,000 charge cycles — the highest in the residential market. For a homeowner who charges and discharges their battery once daily, 10,000 cycles represents over 27 years of operation, well beyond the life of the solar panels themselves.
The sonnenBatterie integrates the inverter, battery management system and energy management controller into a single all-in-one unit. The system is highly modular — capacity can be expanded by adding modules without replacing the existing unit. This makes Sonnen an excellent choice for homeowners planning to stage their battery investment over time.
First Step Solar key takeaway
Highest lifetime value. Guaranteed for up to 10,000 charge cycles. Locally assembled in Adelaide. Excellent if premium build quality, maximum longevity and local manufacturing matter to you.
Sonnen
At a glance
Top products
Sonnen’s flagship all-in-one residential battery system. 11kWh usable capacity with integrated inverter. Assembled in Adelaide. Supports up to 10,000 charge cycles. The benchmark for long-term residential battery ownership in Australia.
An updated variant of the core sonnenBatterie with improved software intelligence and energy management. 10kWh usable capacity. Same 10,000 cycle warranty and Adelaide assembly. Designed for smarter grid interaction and VPP participation.
Additional capacity modules can be added to existing sonnenBatterie installations without replacing the base unit. Allows homeowners to start with the right capacity today and expand as energy needs grow — or as EV charging demand increases.
Australian compliance
sonnenBatterie 10 and Evo are listed on the CEC approved battery products list. Local Adelaide assembly ensures product availability and warranty support without international shipping delays.
Sonnen has strong Australian operations and local warranty service. Under ACL, consumer guarantees apply alongside Sonnen’s 10-year/10,000-cycle warranty. Local manufacturing significantly reduces warranty claim complexity.
sonnenBatterie meets AS/NZS 4509 and relevant grid connection standards. Compatible with SA Power Networks requirements. Sonnen participates in several SA VPP programmes with competitive earnings structures.
Sonnen’s Adelaide assembly facility means replacement parts and service technicians are locally available — a meaningful advantage for long-term warranty service compared to brands relying entirely on imported spare parts.
Use our Solar Calculator to get up to 3 free quotes from vetted South Australian installers who supply and install Sonnen batteries.
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Me and my wife are over the moon with the results we got from these panels
Panels work a treat, no complants here
I am extremely impressed with the results we achieved through their digital marketing services.
Their ability to capture our brand essence and create visually stunning designs truly.
I couldn't be happier with the solution. It has exceeded my expectations and made my life so much easier.
The analytics and reporting capabilities of our software have transformed our decision-making.
Wildpoldsried, Germany and Adelaide, South Australia
Sonnen was founded in 2010
Durability and Long Lifespan: Sonnen utilizes Lithium Iron Phosphate (LFP) battery technology, with a guaranteed minimum of 10,000 charging cycles. This translates to a reliable and long-lasting investment for your home solar system
Altough being based in Germany they have both offices and warehouses here in Australia for easy support access
