Lithium energy storage system ESS 3.6KW+8KWH

lead-acidfor solar applicationsfor photovoltaic systems

The ESS 3.6KW+8KWH is a highly integrated all-in-one energy storage system combining an inverter, battery management system (BMS), and MPPT solar charger. It supports grid-tie operation, WiFi remote monitoring and multiple communication interfaces, with intelligent charge/discharge management for lithium batteries, suitable for residential and light commercial applications.

Key features

• Highly integrated inverter and BMS design with compact structure
• Built-in MPPT solar charger, maximum PV power 5 kW
• Supports grid-tie operation for feed-in
• WiFi remote monitoring supported with large LCD display
• Multiple communication interfaces (RS485, dry contact, USB) for battery expansion and management
• Pure sine wave output, fast transfer time (10 ms), functions as online UPS

Operating Conditions

• Protection Level: IP20 (for indoor installation)
• Operating Temperature: -10°C ~ +50°C
• Operating Humidity: 5% ~ 95% RH (non-condensing)
• Max. Operating Altitude: 4000 m (derating required above 1000 m)
• Storage Temperature: -15°C ~ +60°C

Technical specifications

• Model designation: ESS 3.6KW+8KWH
• Rated AC Power: 3.6 kW
• Surge Power: 5.7 kVA
• Rated Battery Capacity / Rated Energy: 8 kWh (0.2C, 25°C)
• Usable Energy (90% DOD): 8 kWh
• AC Output Voltage: 208 / 220 / 230 / 240 VAC
• AC Input Rated Voltage: 208 / 220 / 230 / 240 VAC; L+N+PE
• Voltage Range (Normal Mode): 90 ~ 280 ±3 VAC
• Voltage Range (UPS Mode): 170 ~ 280 ±3 VAC
• Frequency: 50 / 60 Hz (auto-adaptive)
• Output Frequency Accuracy: 50/60 Hz ±0.1%
• Power Factor (PF): 1
• Transfer Time: 10 ms
• Wave Form: Pure Sine Wave
• Solar Charger Type: MPPT
• Max. PV Input: 5 kW / 8 A
• Max. PV Input Current / Power: 8 A / 5000 W
• MPPT Operating Voltage Range: 40 ~ 450 VDC
• Max. PV Open Circuit Voltage: 500 VDC
• Max. PV Charge Current: 100 A
• Max. AC Charge Current: 100 A
• Max. Charge Current (PV + AC): 100 A
• Battery Nominal Voltage: 25.6 VDC (operating range 20 VDC ~ 29.2 VDC)
• Max. Charge / Discharge Current: 75 A / 150 A
• Max. Efficiency (Battery Mode): 92.7%
• Display: LCD
• Communication: USB, RS485, Dry Contact
• Monitoring: WiFi