Marstek

Marstek was built around one idea: affordable, plug-in battery storage for everyday households. Their flagship Venus E line are AC-coupled batteries that simply plug into a wall socket — no electrician, no permits, no disruption. With IP65-rated LFP cells rated for 6,000+ charge cycles and a 10-year warranty, they're built for the long haul. The Venus E 3.0 (launched 2025) is modular and scalable: up to 9 units can run in parallel on a three-phase setup for 46 kWh of total capacity. The Marstek app provides live monitoring, time-of-use scheduling, and AI-assisted charge/discharge control. Anti-feed-in technology ensures you use every watt you generate before it reaches the grid.