BYD Battery-Box Premium HVM 13.8 solar storage

BYD Battery-Box Premium HVM 13.8 – High-voltage storage with 13.8 kWh capacity

The BYD Battery-Box Premium HVM 13.8 is a modular high-voltage storage system based on safe LiFePO₄ cell technology. It consists of five HVM modules connected in series, each with a capacity of 2.76 kWh, resulting in a total usable capacity of 13.8 kWh. The system is suitable for both residential and commercial applications where efficient self-consumption optimization, emergency power supply, or off-grid operation is required.

Technical specifications

• Usable capacity: 13.80 kWh
• Number of modules: 5 × HVM (2.76 kWh each)
• Nominal voltage: 256 V (Voltage range: 200–295 V)
• Max. output current: 50 A (75 A for short periods of 3 seconds)
• Dimensions (H × W × D): 1461 × 585 × 298 mm
• Weight: approx. 192 kg
• Interfaces: CAN / RS485
• Protection rating: IP55
• Operating temperature: -10 °C to +50 °C
• Efficiency: ≥ 96%
• Cell technology: Lithium iron phosphate (LiFePO₄), cobalt-free
• Certifications: VDE 2510-50, IEC 62619, CE, UN 38.3
• Warranty: 10 years

Advantages at a glance

• Modularly expandable: Up to 8 modules per tower (22.1 kWh) or up to 3 towers in parallel (max. 66.2 kWh)
• Safe battery cells: High thermal stability, no cobalt content
• Long lifespan: Over 6,000 charge cycles at 90% depth of discharge
• High performance: Also suitable for applications with short-term high power demands
• Easy installation: Stackable system with pluggable connections – no internal wiring required.
• Broad compatibility: Supports a wide range of established hybrid inverters

Typical applications

• Self-consumption of PV power in single-family or multi-family homes
• Commercial facilities with high electricity consumption
• Backup systems to protect against power outages
• Off-grid projects and island systems
• Retrofitting existing photovoltaic systems

The BYD Battery-Box Premium HVM 13.8 impresses with its high storage capacity, reliable technology, and flexible scalability. The combination of safety, performance, and expandability makes the system ideally suited for demanding energy storage solutions – today and in the future.

This product is a storage system for photovoltaic systems and is therefore exempt from VAT according to §12 Paragraph 3 of the German VAT Act (UStG) since January 1, 2023. The VAT exemption is correctly displayed in the shopping cart and on the invoice. This VAT exemption applies only to private customers with their primary residence in Germany.

If you are a private customer from Germany and are using the item as storage for a solar power system, then select the option "Reduced VAT rate 0%"