Sigenergy - Battery Reviews

About Sigenergy

Sigenergy is a newcomer to the solar energy storage market - and the company's flagship SigenStor battery is an intriguing solution.

Australian Office Contact Details

Address: Suite 02, Level 7, 191 Clarence Street, Sydney, NSW 2000
Tel. (Sales): 0400 108 934 
Tel. (Support): 0452 417 654 
Email (Sales): [email protected] 
Email (Support): [email protected]
Australian website

Company Info

Sigenergy was founded in early 2022 by ex-Huawei solar division president Tony Xu. While the firm has only been around for a couple of years, it boasts 600+ employees; 70% of who are R&D personnel.  The company has an 8,000 square metre facility in China housing its global headquarters and all those R&D folks.

Sigenergy's battery manufacturing plant is a 20,000 square metre factory located in the Lin-gang New Area in Shanghai, which has an annual production capacity of 6 GWh. In an effort to "green" its operations, Sigenergy has installed a 3,000 square metre (capacity not noted) solar system on the factory's rooftop.

SigenStor Solar Battery Highlights

Sigenergy introduced the SigenStor to the Australian market in 2023. The company claims the SigenStor is the first "five-in-one" energy storage system. It combines:

• a PV hybrid inverter
• battery pack
• battery PCS (Power Conversion System)
• Optional EV DC charger module - V2X "ready" (bidirectional charging)
• EMS (Energy Management System)

The batteries are available as single-phase models in 5kW, 6kW, 8kW and 10kW AC ratings, with 2, 3 or 4 MPPT inputs. In three-phase, it's available in 5kW, 10kW, 15kW, and 25kW AC ratings, with 2, 3 or 4 MPPT solar inputs.

There are 5kWh and 8kWh battery packs available — and a couple more choices on the way — which are stackable to six units high. Additionally, further parallel capacity can be added.

The SigenStor offers blackout protection, with a very quick switchover time -  5-millisecond switching to backup mode. When grid power is restored, the system transitions back within 0 milliseconds. When installed as a battery hybrid (requiring a fee-based firmware upgrade), a gateway is available for full home backup.

On the EV charging front, it's capable for DC EV fast charging at 12.5kW or 25kW capacity. AC EV charging can be carried out at 7kW, 11kW (3-phase) or 22kW (3-phase) with dynamic control.

AI is also integrated into the SigenStor, which polls the battery every ten seconds. The app can be instructed using AI-powered chat. And just on the app, it offers very detailed monitoring - providing information as granular as individual cell voltages and temperatures.

As for VPP support, SigenStor has been integrated with several VPP platforms in Australia, with more to come.

The SigenStor has an IP66 rating; so it's suited to outdoor installation. It has an operating temperature range of -20°C to 55°C according to the datasheet and the warranty document confirms it can't be operated outside of -20°C to 55°C ambient temperature.

SigenStor Safety Features

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Update: 13 November, 2025. Inverters in some single-phase SigenStor systems are experiencing overheated terminals, melted plugs and burnt out wiring. The company is aware and taking action. More information here.
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In addition to using LFP (lithium-iron phosphate) battery cells - a very stable Li-ion chemistry - the SigenStor has five layers of protection:

• Multiple advanced temperature sensors monitored by AI.
• Internal fire suppression system - aerosol based, claimed to extinguish fires within 4 seconds.
• Decompression valve.
• Aerogel-insulated pads between cells to prevent spread of heat.
• High-temperature-resistant insulation. 

The above really only scratches the surface - for a deep-dive into this battery, check out SQ's Anthony's post on SigenStor. You can also see estimated pricing and compare specs with other home energy storage solutions on SQ's solar battery comparison table.

Warranty Information 

The SigenStor has a 10-year product warranty on the battery and energy controller, 5 years on the gateway, and 2 years on the power sensor and communications modules. Sigenergy warrants that the battery system will retain either 70% of usable capacity at year 10 or for a minimum energy throughput of 15.85MWh for the 5kWh module or 23.77MWh for the 8kWh; whichever comes first.

Installer Approved

While the SigenStore battery is only new to the Australian market, or any market for that matter, it still managed to take 2nd place in the 2025 Installers' Choice Awards.  We asked installers, "If installing a system on your own house today, what brand's batteries would you use?"  and Sigenergy took 2nd place in a literal vote of confidence.