Products from BYD’s energy storage business showcased at the 2026 Smarter E Europe exhibition in Munich, Germany. Credit: BYD
- BYD rolled out a residential energy ecosystem in Europe and launched its new Battery-Box Mega.
- Battery-Box Mega spans applications from 62.4 kWh to 5.24 MWh, targeting both residential and commercial-and-industrial scenarios.
BYD (HKEX: 1211) has launched a residential energy ecosystem in Europe and rolled out a new home-storage product, the Battery-Box Mega.
The company’s energy storage business unit unveiled the products at the Smarter E Europe 2026 in Munich, Germany. Running June 23-25, the event is one of Europe’s largest energy industry exhibitions.
BYD’s energy storage business, BYD Energy Storage, appeared with a full-scenario product lineup, underscoring its ambition to expand in the global energy storage race.
The newly launched residential energy ecosystem includes three new products: the Smart Ecobox, the Backup-Box and the AC Charging Box.
The Smart Ecobox serves as the system’s intelligent energy management hub, enabling smart scheduling and optimization of household energy, according to a Wednesday press release.
The Backup-Box supports home backup power, providing electricity to households during grid outages. The AC Charging Box integrates the storage system with electric vehicle charging.
The residential solution has expanded from a traditional “PV plus storage” system into a full-chain ecosystem that integrates power generation, storage, management, backup and charging, BYD said.
The Battery-Box Mega, which was launched at the show, was the highlight of the event. Although positioned as residential storage, its applications extend beyond homes.
BYD said the Battery-Box Mega is designed specifically for scenarios such as small factories, farms, shops and hotels.
The product combines commercial-and-industrial-grade performance with residential grade convenience, covering a broad range from 62.4 kWh to 5.24 MWh.
On safety, the new product is built with lithium iron phosphate (LFP) cells and features a four-layer safety-protection architecture.
The unit achieves IP66 dust and water resistance and C5, the highest grade of corrosion protection, and can operate across all climates from -20°C to 55°C.
BYD stressed that the product is truly maintenance-free, requiring no fluid replacement over its lifetime and no periodic inspections. It uses a DC-coupled architecture, raising overall operating efficiency by 2%.
The Battery-Box Mega adopts a lightweight stacked-tower design, with each module offering 12.5 kWh of capacity.
It supports flexible configurations from 62.4 kWh to 262 kWh, which can shorten construction timelines and lower upfront installation costs.
The product pairs with BYD’s Power-Box TH inverter, which offers a 42A high-current MPPT and 200% PV oversizing capability.
The inverter also provides 150% off-grid overload capability, allowing it to drive heavy duty equipment, and delivers 10-millisecond backup switching.
Beyond its home storage line, BYD also exhibited its flagship utility scale storage product, BYD Haohan, as well as its next-generation GC Flux PCS and next-generation GC Master EMS.
BYD said it is injecting momentum into Europe’s clean energy transition with its GW-scale grid-forming storage solutions.
Earlier this month, BYD announced that Hungary’s largest battery storage project, built by Greenvolt Power, had officially gone into operation.
BYD supplied the energy storage system for the 99.8 MW / 288.6 MWh project.
The company said it has now delivered multiple large-scale storage projects in more than 110 countries and regions worldwide.
BYD’s domestic rival CATL (HKEX: 3750) on June 22 unveiled its Tener Sodium sodium battery storage system, calling it the world’s first field validated sodium battery storage solution.
BYD and Corvus Energy will jointly develop high-rate marine LFP battery systems.
