DEYE Battery Set GB-L20 PRO 20kWh (high voltage)

DEYE Battery Set GB-L20 PRO 20kWh (high voltage) is a modular energy storage system based on LiFePO4 cells, designed for high voltage installations. In the GB-L20 configuration, the set consists of 5 modules of 4.09 kWh, providing a system nominal voltage of 512 Vdc and a total system energy of 20.45 kWh (available DC energy: 18.4 kWh under specified test conditions). The system offers integrated thermal management, IP65 protection, and advanced communication features.

Manufacturer Information

Manufacturer: NINGBO DEYE ESS TECHNOLOGY CO., LTD. Headquarters: No. 18th Zhenglong Road, Longshan, Cixi, Ningbo, Zhejiang 315311, P.R. China. Deye specializes in ESS (Energy Storage System) solutions and provides modular LiFePO4 batteries and accessories for connection with PCS systems and photovoltaic installations.

Electrical and Operational Parameters

• Cell Chemistry: LiFePO4 (LFP)
• Module Energy: 4.09 kWh (module GB-LM4.0)
• Nominal Module Voltage: 102.4 V
• Module Capacity: 40 Ah
• Nominal System Voltage (GB-L20): 512 V
• Operating Voltage Range: 166.4 ~ 700 V
• Total System Energy: 20.45 kWh
• Usable Energy (DC): 18.4 kWh (under test conditions specified in the specification)
• Charge/Discharge Current: recommended 20 A, nominal 40 A, peak discharge current 50 A (2 minutes, 25°C)
• Display and Monitoring: LCD showing SOC%, power, total voltage; communication CAN2.0 and RS485
• Operating Temperatures: charging 0 ~ 55°C, discharging -20 ~ 60°C
• Electrical Protection Class: IP65
• Life Cycle: ≥6000 cycles (25±2°C, 0.5C/0.5C, EOL 70%)
• Warranty: 10 years

Mechanical Parameters

• Dimensions (L x W x H): 540 × 385 × 1310 mm
• Weight: 214 kg
• Installation Location: floor-mounted
• Enclosure Protection Class: IP65 (protection against dust and water)
• Corrosion Resistance: class ≥ C2