BYD Battery-Box Premium HVS 2.56

High-Voltage Battery Module BYD Battery-Box Premium HVS 2.56 kWh

A single HVS module from the BYD Battery-Box Premium family provides 2.56 kWh of high‑voltage energy storage in a compact LiFePO4 module. It is designed to serve as the base unit in BYD’s modular HVS storage ecosystem, enabling scalable energy storage for PV systems, backup power, and multi‑module configurations.

Applications and use cases

This BYD HVS 2.56 kWh module is suitable for residential solar storage, light commercial PV installations, and off‑grid or backup power scenarios when integrated into a BYD energy storage system. Its modular design supports scalable deployments, allowing additional modules to be added to match evolving energy needs. The unit is compatible with BYD’s premium HVS/HVM family, delivering a streamlined path from a single module to a larger storage solution. Its robust LiFePO4 chemistry is chosen for safety, longevity, and dependable performance in everyday storage tasks.

• Residential solar storage with expandable capacity
• Commercial PV systems requiring scalable energy reserves
• Backup power for essential loads and critical infrastructure
• Indoor or outdoor installations in suitable environments due to protective enclosure
• System integration via CAN/RS-485 for reliable control and monitoring
• Modular architecture enabling phased upgrades and retrofits

Key electrical and performance parameters

The module is designed around a high‑voltage, high‑output energy storage approach, delivering 2.56 kWh per module with a nominal voltage of about 102.4 V. It uses LiFePO4 chemistry for safety and long life and includes a protective IP55 enclosure. Each module weighs around 38 kg, enabling practical handling and deployment in standard storage configurations. The BYD HVS 2.56 kWh module also forms part of a broader BYD energy storage ecosystem and supports CAN/RS-485 communication for seamless integration with system controllers.

• Energy capacity: 2.56 kWh per module
• Nominal voltage: 102.4 V
• Technology: LiFePO4 (lithium iron phosphate)
• Protection class: IP55
• Weight: 38 kg
• Communication protocol: CAN/RS-485
• Model name: HVS 2.56
• Brand: BYD
• Warranty: 10 years

Battery and backup capabilities

As the base unit of BYD’s modular HVS system, this module provides reliable energy storage that can be scaled by adding additional modules. When paired with BYD Battery-Box Premium controllers, it supports integrated backup power for essential circuits and can contribute to a broader, resilient energy storage installation for PV systems or off‑grid applications. The LiFePO4 chemistry offers stable performance through many charge–discharge cycles, contributing to long‑term reliability in daily storage use.

• Base unit for modular BYD HVS storage, scalable by adding modules
• Reliable backup capacity for essential loads when integrated into a complete system
• LiFePO4 chemistry supports long cycle life and safety
• CAN/RS-485 enables robust communication with battery management and system controllers

Operating conditions and reliability

The module is built for durability in typical PV storage environments, featuring an IP55‑rated enclosure for protection against dust and water exposure. Its LiFePO4 technology provides strong safety margins and a long service life, making it well suited for continuous daily cycling in home, commercial, and grid‑tied storage configurations. The unit’s modular approach supports predictable long‑term demand, with a clear path to system expansion as energy needs grow.

• IP55 enclosure for robust protection
• LiFePO4 chemistry for safety and longevity
• Modular design supports scalable energy storage
• CAN/RS-485 communication ensures reliable control and monitoring

Mechanical design and installation

The BYD HVS 2.56 kWh module is designed as a compact, installable battery module suitable for integration into BYD’s energy storage racks and ecosystems. With a manageable weight of approximately 38 kg, it supports straightforward handling during installation and service in both retrofit and new build projects. Its standardization within the BYD HVS family helps ensure consistent mechanical and electrical interfaces across multiple modules for seamless system assembly.

• Modular, scalable architecture for easy capacity expansion
• Weight around 38 kg per module for manageable handling
• Standardized interface within BYD Battery-Box Premium HVS ecosystem
• Suitable for rack-based or integrated installation in residential and commercial setups