The SAKO LI-SUN Lithium Battery Pack 51.2V100Ah is a high-performance energy storage solution designed for solar power systems, hybrid inverters, and backup energy applications. Built using advanced LiFePO4 battery technology, this battery provides excellent safety, long lifespan, and reliable power delivery for residential and commercial energy storage systems.

With a nominal energy capacity of 5120Wh (5.12kWh) and a stable 51.2V system voltage, the battery is engineered to support modern solar installations that require efficient and durable power storage. The integrated Smart Battery Management System (BMS) ensures full protection against overcharge, over-discharge, over-current, short circuit, and temperature variations, guaranteeing safe and stable operation.

This lithium battery features a voltage operating window of 44.8V – 58.4V, with a fast charge voltage of 57.6V and float charge voltage of 56.0V, enabling optimized charging performance with compatible hybrid and off-grid inverters. The battery supports continuous discharge current of 100A and pulse discharge up to 150A (1 second), making it suitable for high-load applications in solar systems.

Designed for scalability, the system supports parallel connection of up to 15 batteries, allowing users to expand their storage capacity as their energy demand grows. Communication interfaces such as RS485 and CAN allow seamless integration with many popular inverter brands.

The battery offers more than 6000 charge cycles at 90% depth of discharge, ensuring a long service life that can exceed 10 years of reliable operation under normal conditions. Its robust construction, IP20 protection rating, and wide operating temperature range from -10°C to +50°C make it suitable for various installation environments.

The SAKO Li-Sun 51.2V100Ah battery supports both wall-mounted and floor-standing installation, making it a flexible energy storage solution for solar power systems, off-grid applications, and backup power systems.

Key Specifications (51.2V100Ah)

• Battery Type: LiFePO4 Lithium Iron Phosphate

• Nominal Voltage: 51.2V

• Capacity: 100Ah

• Total Energy: 5120Wh (5.12kWh)

• Usable Energy (90% DOD): 4608Wh

• Voltage Window: 44.8V – 58.4V

• Fast Charge Voltage: 57.6V

• Float Charge Voltage: 56.0V

• Low DC Cut-off Voltage: 46.8V

• Max Continuous Discharge Current: 100A

• Max Pulse Discharge Current: 150A (1 sec)

• Max Charge Current: 50A

• Cycle Life: 6000+ cycles

• Communication: RS485 / CAN

• Parallel Expansion: Up to 15 batteries

• Operating Temperature: -10°C to +50°C

• Dimensions: 641 × 389 × 179 mm

• Net Weight: 44.5 kg

• Protection: Overcharge, Over-discharge, Overcurrent, Short circuit, Over-temperature