Description

The Sunsynk 61.44kWh LiFePO₄ Lithium-Ion Battery is a robust, modular high-voltage energy storage system designed for large residential, commercial, and industrial solar installations. Built with Lithium Iron Phosphate (LiFePO₄) cells and advanced Battery Management System (BMS), this high-capacity battery delivers efficient energy storage, long cycle life, and reliable performance to support backup power, load-shedding protection, peak shaving, and hybrid or off-grid systems.

Each system is comprised of 12 modular 5.12kWh battery units wired in series, resulting in a total nominal capacity of 61.44kWh and a typical operating voltage range of approximately 538 – 691 V. This high-voltage design improves system efficiency by reducing current and losses, and it integrates seamlessly with compatible high-voltage solar inverters for optimal energy use.

The built-in smart BMS continuously monitors individual cell voltage, current, temperature, and state of charge, providing comprehensive protection against over-charging, over-discharging, over-current, and thermal extremes. With a long cycle life of over 6 000 cycles and a generous 10-year warranty, this battery system is engineered for durability and extended service life.

This battery is ideal for large-scale solar systems where significant energy storage capacity is required — such as estates, commercial buildings, microgrids, off-grid facilities, and industrial applications. Its modular and scalable rack design allows for future expansion, and it can also be deployed in parallel clusters for even greater capacity when needed.

Technical Specifications

• Brand: Sunsynk

• Model: HV 61.44kWh Battery Pack

• Battery Type: Lithium Iron Phosphate (LiFePO₄)

• Total Nominal Energy: 61.44 kWh

• Battery Module Capacity: 5.12 kWh per module (12 modules)

• Nominal Voltage Range: ~538 – 691 V

• Operating Voltage: 499.2 – 700 V (typical HV design)

• Max Charge/Discharge Rate: ~1C (100 A)

• Peak Discharge Current: ~125 A (short duration)

• Cycle Life: ≥ 6 000 cycles typical (80 % DoD)

• Usable Energy (90 % DoD): ~55 kWh (approx.)

• Depth of Discharge (Recommended): ~90 %

• BMS Protections: Cell balancing, over-voltage, over-discharge, over-current, temperature protection

• Communication: CAN2.0 / RS485 (for inverter integration)

• Operating Temperature: Charge: 0 °C to +55 °C; Discharge: –20 °C to +55 °C

• Humidity: 5 % – 85 % RH

• Installation: Rack-mount high-voltage battery system

• IP Rating: IP20 (indoor)

• Weight (Total): ~ 628 kg

• Dimensions (W×D×H): ~ 589 × 590 × 2240 mm

• Warranty: 10 years limited

• Certifications: CE, IEC62619, UL1973, UL9540A, UN38.3

• Applications: Large solar storage, commercial backup, microgrid, hybrid systems

 

Sunsynk 61.44kWh – User Manual

 

Frequently Asked Questions

What is the Sunsynk 61.44kWh battery used for?

A high-capacity energy storage system for solar, hybrid, and backup applications.

How many modules make up this system?

12 x 5.12kWh modules connected in series for 61.44kWh total capacity.

Can the capacity be expanded?

Yes, you can connect additional high-voltage battery systems in parallel to increase capacity.

What lithium cells does it use?

It uses safe and durable LiFePO₄ cells with long cycle life.

Is it suitable for load-shedding?

Yes, it’s ideal for load-shedding backup and unstable grid conditions.

What protections does it include?

Smart BMS protects against over-charge, over-discharge, over-current and temperature issues.’

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