Sako Power3.5Kw Sunon Pro Off Grid Inverter with 25.6V LiFePO4 Battery Combo

Please Note

Requires installation by a SAKO preferred installer or a qualified electrician with a Wireman's license, who must supply a Certificate of Compliance after installation. Failure to provide the mentioned certificate of compliance and installation details may result in the voiding of your warranty

About

Power your home, office, or off-grid setup with this high-performance 3.5kW Pure Sine Wave Inverter and 25.6V 100Ah Lithium Battery Combo. Designed for reliable backup power and solar energy storage, this system features a built-in 100A MPPT solar charge controller, high-voltage PV input support, and advanced LiFePO4 battery technology for long-lasting performance. Whether you're reducing reliance on the grid or ensuring uninterrupted power during outages, this solution delivers efficient, stable, and intelligent energy management.

Product Features

Inverter

• 3.5kW pure sine wave inverter for clean, stable power output
• Built-in 100A MPPT solar charge controller
• Supports operation with or without a battery connected
• High PV input voltage range up to 500VDC
• Compatible with large solar panel arrays up to 5000W
• Fast transfer time for sensitive electronics and appliances
• Peak efficiency of up to 98% on MPPT charging
• LCD display with touch-button controls
• Optional Wi-Fi monitoring capability
• Auto-sensing 50Hz/60Hz frequency

Lithium Battery

• Advanced LiFePO4 lithium battery technology
• 100Ah capacity with 2560Wh energy storage
• Long lifespan with 5000+ cycle life
• High-quality CATL battery cells
• Wall-mounted design for space-saving installation
• Continuous 100A discharge capability
• Integrated protection against overcharge, over-discharge, short circuit, overcurrent, and overheating
• Optional communication ports (CAN, RS485, RS232)
• Maintenance-free operation
• Ideal for solar energy storage and backup power systems

Product Specifications 

3.5kW Pure Sine Wave Inverter

Power

• Rated Power: 3500VA / 3500W
• Surge Power: 7000VA
• Peak Efficiency: 90%

Battery Parameters

• Battery Voltage: 24VDC
• Low Battery Alarm Voltage: 22VDC
• Low Battery Cut-Off Voltage: 21VDC
• Recovery Voltage: 23VDC
• Float Charge Voltage: 27VDC
• Overcharge Protection: 32VDC

AC Input

• Rated Voltage: 230VAC
• Selectable Voltage Range:
  • 90–280VAC (Appliances)
  • 170–280VAC (UPS)
• Frequency: 50Hz / 60Hz (Auto Sensing)

AC Output

• Output Voltage: 230VAC ±5%
• Transfer Time:
  • 10ms (UPS Mode)
  • 20ms (Appliance Mode)
• No-Load Current: 1.0A
• Waveform: Pure Sine Wave

Solar Charger

• MPPT Charging Technology
• Maximum PV Array Power: 5000W
• MPPT Operating Range: 120–450VDC
• Maximum PV Open Circuit Voltage: 500VDC
• Maximum Charging Current: 100A
• Maximum AC Charging Current: 60A
• MPPT Efficiency: Up to 98%

Recommended Solar Configuration

• 18 x 300W Panels (9 Panels × 2 Parallel Strings)
• Total PV Capacity: 5400W

Physical

• Dimensions: 481 × 313 × 117mm
• Weight: 9.8kg

Operating Conditions

• Operating Temperature: 0°C to 50°C
• Relative Humidity: 5%–95% (Non-Condensing)

25.6V 100AH LITHIUM BATTERY

Battery Specifications

• Battery Type: LiFePO4
• Nominal Voltage: 25.6V
• Capacity: 100Ah
• Energy Storage: 2560Wh
• Float Charge Voltage: 28V
• Operating Voltage Range: 22.4V–29.2V

Performance

• Maximum Continuous Discharge Current: 100A
• Maximum Pulse Discharge Current: 200A (30 Seconds)
• Maximum Continuous Charge Current: 50A
• Cycle Life: ≥5000 Cycles
• Cell Equaliser Current: 1–5A Max

Construction

• Installation Type: Wall Mounted
• Cell Brand: CATL
• Terminal Type: M8
• Protection Rating: IP20

Protection Features

• Overcharge Protection
• Over-Discharge Protection
• Overcurrent Protection
• Short-Circuit Protection
• Overtemperature Protection

Communication & Monitoring

• Optional LCD Display
• Optional CAN Communication
• Optional RS485 Communication
• Optional RS232 Communication

Environmental Conditions

• Operating Temperature: -10°C to 50°C
• Humidity: 0–95% (Non-Condensing)
• Maximum Altitude: ≤1500m
• Storage Temperature: 0°C to 30°C
• Storage Duration: Up to 6 Months at 25°C

Dimensions & Weight

• Dimensions: 414 × 372 × 227mm
• Net Weight: 33.2kg
• Gross Weight: 35.4kg

Certifications

• UN38.3
• IEC62619
• CE

Warranty

• Inverter and Battery: 6 Months
• Damage caused by overload is not covered in the warranty