Anker Solix launches 7 kWh plug-in solar battery
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- Anker Solix launched the Solarbank Max AC, a 7 kWh modular home battery designed to retrofit existing rooftop solar installations, featuring a bidirectional 3.5 kW inverter.
- The system's capacity is expandable to 42 kWh by adding five additional 7 kWh LFP battery modules, and the company claims it is the world's first 7 kWh all-in-one plug-in home storage system.
- The Solarbank Max AC steps up in scale from Anker Solix's existing European Solarbank lineup, which has focused primarily on balcony solar systems, and targets the large-scale rooftop retrofit market.
- The Solarbank 3 E2700 Pro, the prior product, offers 2.688 kWh per unit and up to 16 kWh total capacity with 800 W to 1,200 W output, while the Solarbank Multisystem launched in August 2025 reaches 64 kWh and 4.8 kW AC output via a central Power Dock.
- Anker Solix says the system can be self-installed under certain conditions and local regulations, though professional installation is generally required for full home storage operation and full output.
- In Germany, regulations are increasingly changing to support plug-in operation including grid charging with output limits up to 800 VA, permitting self-installation and self-registration only to a point.
Why it matters: The Solarbank Max AC targets homeowners who already have rooftop solar but lack battery storage, offering a plug-in alternative to full inverter replacement. By claiming a first-of-its-kind 7 kWh all-in-one plug-in form factor, Anker Solix is positioning for the European retrofit market at a time when German regulations are moving toward greater DIY plug-in allowances, potentially lowering the installation barrier for households with existing PV.
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