· LED display or LCD display selectable
· Microprocessor-based digital control

· Boost and buck AVR for voltage stabilization

12. · Auto sensing frequency

13. · Wide input voltage range

14. · Power-on self test

15. · Cold start

16. · Auto restart when mains power is restored

17. · Auto track mains phase to ensure that inverter output voltage has same phase with utility voltage, reducing transfer time and peak surge

18. · Intelligent battery management: battery temperature compensation to extend the battery life; three-stage charging to shorten recharge time

19. · Short circuit, battery overcharge / overdischarge, overload, surge protections

20. · Automatic charging in OFF mode

21. · Optional no-load shutdown

22. · Optional USB & RJ45 ports

23. · Unattended safety shutdown: system alarm and auto Power-On / Off by USB interface communicating with PC