SolaX X1 RetroFit 7.5kW AC Coupled HV Battery Inverter

By SolaX

Delivery available

Upgrade your PV System with SolaX X1 RetroFit 7.5kW AC Coupled HV Inverter

Generate energy from your solar panels during the day, and the intelligent SolaX Power X1 RetroFit 7.5kw Charger Inverter will direct excess energy into your battery for later use, enabling you to make the most use of your solar output.

Charge your batteries with free, clean solar energy. Discharge your stored energy during the evening when the sun has gone down, then charge your batteries back up over night on a cheaper tariff such as Octopus GO.

This SolaX X1 RetroFit 7.5kW AC Coupled Battery HV Inverter solution, compatible with any brand of single-phase inverter, achieves a remarkable maximum efficiency of up to 97%. Whether installed indoors or outdoors, it facilitates remote monitoring through the XCloud, offering enhanced flexibility and control over your solar energy system.


  • High Voltage Battery Support: Requires thinner cables, enhancing installation efficiency.
  • 7.5kW Max Charge/Discharge: Ensures optimal energy management.
  • SolaX WiFi Stick: Enables remote monitoring via XCloud, enhancing user accessibility.
  • Suitable for Grid Trading Applications: Responds in less than 0.5 seconds, suitable for grid trading applications.
  • Charging from Grid Possible: Allows charging directly from the grid for added flexibility.
  • Natural Cooling: Operates quietly with low maintenance requirements.
  • Supplied with One CT

Key Features:

This high-quality inverter efficiently converts solar energy into AC energy, storing it in a battery for future use. Noteworthy features include:

  • Addition of Batteries to Existing PV Systems: Easily integrates into existing PV systems, upgrading to solar battery storage without altering the current installation.
  • Versatile Installation: Suitable for indoor or outdoor use with an IP65 rating.
  • Compatible High Voltage Batteries: Compatible with high voltage batteries for enhanced storage capacity SolaX Triple Power T30 3.0-9.0/12.0kWh, and SolaX Triple Power HV 5.8-17.3kWh Battery Banks.
  • Multiple Protections: Equipped with safety features such as RCD, isolation, overvoltage, overtemperature, earth protection, and short-circuit protection.
  • Transformerless Design: Incorporates software and hardware protection for reliable performance.

Operating Modes:

The SolaX X1 RetroFit 7.5kW AC Coupled Battery HV Inverter offers four operational modes catering to diverse needs:

  1. Self-Use (Default): Prioritizes local loads, utilizing grid power only when the battery capacity is insufficient.
  2. Back Up: Preserves higher battery capacity when the grid is on, discharging only during grid outages.
  3. Feed-in Priority: Maximizes feed-in tariff benefits by prioritizing grid feeding, load supply, and battery charging.
  4. Force Time Use: Allows flexible scheduling of charging and discharging times, with the option to charge from the grid.

Fast Delivery Across the UK:

Experience the advantages of the SolaX X1 RetroFit 7.5kW AC Coupled HV Battery Inverter with swift 2-3 working day delivery across the UK.

      Detailed specifications:

      Battery Type: Lithium Iron Phosphate (LiFePO4)
      Battery Voltage: 80-480V
      Max. Charge/Discharge Current: 30A
      Max. apparent AC power: 9200VA
      Max. Input Current: 40A
      Nominal grid voltage(AC voltage range): 220/230/240
      Nominal grid Frequency/range: 50/60Hz
      Nominal AC power: 7500W
      Max. Output Apparent Power: 7500VA
      Max. AC Current: 32.6A 
      Nominal grid voltage(AC voltage range): 220/230/240V
      Nominal Grid Frequency: 50/60Hz
      Displacement power factor: 0.8 leading to 0.8 lagging 
      THDi: <2% @rated power
      Nominal output power: 7500W
      Peak apparent power: 7500VA
      Max. continuous current: 32.6A
      Nominal voltage; frequency: 230V; 50/60Hz
      Switch time: <10ms
      Parallel operation: YES
      Max. Battery charge efficiency (GRID to BAT): 97.0%
      Max. Battery discharge efficiency (BAT to AC): 97.0%
      Operating Temperature: -25 ~ +60 (derating at 45)
      Protection Degree: IP65
      Size:  482*417*181mm
      Net Weight: 23kg

      In the Box:
      • 1 X SolaX X1 RetroFit 7.5W AC Coupled Battery HV Inverter,
      • 1 X SolaX X1 RetroFit 7.5kW AC Coupled Battery HV Inverter User's Manual.
      Frequently Asked Questions:

      Don't know an answer to your question? Call us on 020 8064 0335 or email