BYD B-Box Premium HVM 22.1 kWh Lithium Battery

Product Description

The BYD B-Box Premium HVM 22.1 kWh Lithium Battery is the top-of-the-line tower configuration in the HVM family: it incorporates 8 modules of 2.76 kWh stacked on a Base and managed by the BCU, offering 22.1 kWh usable at a nominal voltage of 409 V. Its cobalt-free LiFePO₄ chemistry maximizes safety and service life, while the modular plug-in design simplifies assembly, maintenance, and future expansions (including parallelization of up to 3 towers with the same number of modules). With round-trip efficiency ≈96 % and IP55 rating, it is the ideal option for installations with high continuous energy demand and demanding power peaks.

Main Features

• Usable energy: 22.1 kWh (8× HVM 2.76).
• Nominal voltage: 409 V (typical range 320–480 V).
• Chemistry: cobalt-free LiFePO₄ (LFP).
• Current: 50 A continuous; 75 A peak 5 s.
• Round-trip efficiency: ≈96 %.
• Protection: IP55 (indoor/protected outdoor).
• Connection between modules: plug-in without internal wiring.

Advantages or Benefits

• Maximum capacity per tower: ideal for high consumption and extended backup.
• Horizontal scalability: parallelizable up to 3 towers (8-8-8) for large systems.
• Simple integration: CAN/RS485 communication with compatible HV inverters.
• LFP safety and reliability: BCU coordinates balancing, SOC/SOH, and critical events.

Purpose or Applications

Residential and commercial projects with high demand (heat pumps, EV chargers, light machinery), long autonomy back-up, peak-shaving, and professional off-grid requiring robust, efficient, and safe HV storage.

Technical Specifications

Compatibilities

Compatible with: BCU + BYD HVS/HVM Base (1× per tower), HVM 2.76 kWh Module for replacement/expansion, and HV inverters with BYD profile via CAN/RS485.

BYD B-Box Premium HVM 22.1 kWh Lithium Battery is a professional solution for demanding renewable energy projects. It increases autonomy, optimizes space, and improves the efficiency of your installation.