Sunsynk 61.44kWh HV Battery System for Commercial and Industrial

The Sunsynk 61.44kWh HV Battery System is a high-voltage modular lithium ferro-phosphate (LiFePO₄) energy storage solution comprising 12 x 5.12kWh battery modules, a dedicated BMS and rack enclosure for large-scale commercial and industrial applications.

Product Description

This complete rack-mounted system delivers 61.44kWh of nominal storage capacity at high voltage (538–691V), designed for integration with Sunsynk high-voltage hybrid inverters in commercial solar, grid backup and peak-shaving installations. The modular 19″ rack format allows straightforward scaling and maintenance, with full 100% depth of discharge capability and 1C charge/discharge rates.

Key Features

• High-voltage operation: 538–691V working range reduces cabling losses and enables direct coupling with high-voltage inverters.
• Full modular scalability: 12 x 5.12kWh modules in series provide 61.44kWh total capacity in a single rack.
• High power capability: 100A max continuous charge/discharge (61.44kW at 1C) for demanding commercial loads.
• Advanced BMS: Integrated battery management system with cell balancing, thermal protection and communication protocols.
• 100% DoD: Full depth of discharge maximises usable energy without accelerated degradation.
• Long cycle life: LiFePO₄ chemistry with >6000 cycles at high DoD, 10-year warranty when paired with Sunsynk inverters.

Technical Details

• System capacity: 61.44kWh nominal (12 x 5.12kWh modules).
• Battery chemistry: Lithium ferro-phosphate (LiFePO₄).
• Working voltage: 538–691V DC.
• Max charge/discharge current: 100A continuous (1C rate).
• Module capacity: 100Ah per module.
• Depth of discharge: 100%.
• Operating temperature: Charge 0–55°C, discharge −20–55°C.
• System part number: SUN-HV-61.44.
• Components included: 12 x SUN-HV-5.12-BATT modules, 1 x SUN-HV-BMS, 1 x SUN-HV-61.44-BATTRACK-DOOR rack.

Physical Specifications

• Rack dimensions (W × D × H): 589mm × 590mm × 2240mm (13th floor rack design).
• Total system weight: 572–644kg (including modules and rack).
• Module weight: 44–85kg per 5.12kWh module.
• Protection rating: IP20 (indoor installation).
• Certifications: CE, IEC62619, UN38.3.

System & Application Notes

• Compatibility: Designed for Sunsynk HV-series hybrid inverters (200–800V input range).
• Applications: Commercial solar self-consumption, grid services, peak shaving, large backup systems and industrial off-grid.
• Installation: Professional rack installation required; 19″ modules slide into dedicated rack with pre-wired busbars and communications.
• Expansion: Single rack configuration; additional capacity requires parallel racks with compatible inverter capacity.
• Warranty: 10 years when used with Sunsynk inverters (terms apply).