
More flexibility for your private applications
Focus on maximum flexibility with KOSTAL PLENTICORE and BYD Battery-Box HVB
BYD Battery-Box HVB: The new storage generation for private applications compatible with KOSTAL inverters from the PLENTICORE series
The BYD Battery-Box HVB is a powerful and scalable high-voltage battery solution for private and commercial photovoltaic applications. Thanks to its modular design, the system can be flexibly adapted to different energy requirements - from 8.9 kWh to 29.69 kWh.

The BYD Battery-Box HVB: Maximum flexibility and high performance
Equipped with long-lasting and safe lithium iron phosphate (LFP) cells, the Battery-Box HVB offers maximum operational reliability and a service life of up to 15 years. The intelligent cell-to-pack design ensures maximum energy density in a compact design - with a height of 1.33 m and less than 30 kg per module, one-person installation is possible without any problems.
With an efficiency of over 95%, high charging/discharging performance, intelligent communication (CAN/RS485) and flexible application options (on-grid, off-grid, backup), the Battery-Box HVB is the ideal solution for efficient and future-proof energy management.
Compatibility with the single-phase and three-phase KOSTAL inverters from the PLENTICORE series makes the HVB the ideal solution for private applications focussing on space-saving installation.
The most important things at a glance:
- Use: For private applications with a focus on space-saving installation
- Advantages: modern design, easy wall mounting, new cell technology with high safety standard
Capacity & scalability:
- Modular design with up to 10 battery modules
- Max. usable energy: 29.69 kWh per system
Safety & reliability:
- New generation with "Blade Battery" technology
- Use of LFP cells (lithium iron phosphate) - safe and durable
- 15-year guarantee
- Robust die-cast housing
Flexibility & installation:
- Expandable at any time, even with existing state of charge (SOC)
- Each module weighs <30 kg (one-person installation possible)
- Compact design: full tower height 1.33 m
Performance:
- High charge/discharge rate (up to 30 A e.g. with PLENTICORE L)
- Efficiency ≥ 95 %
- Suitable for: Backup power function with KOSTAL BackUp Switch
Technology & communication:
- RS485
- Automatic SOC adjustment, remote maintenance & OTA updates
Certifications:
- VDE2510-50, IEC62619, CE, UN38.3
- 10-year warranty
The combination of KOSTAL PLENTICORE inverter with BYD HVB battery is ideal for energy storage in PV systems and impresses with its modern design, simple wall mounting and new cell technology with a high safety standard.