Replaceable Battery Design.
 intelligent Battery Management.
 Short Circuit and Overload Protection.
  Surge protected outlets available for convenience. 
 Microprocessor Controlled guarantees high reliability.
 Advanced PWM technology for inverter output. 
 with LED display
 AVR function,inner installed examination circuit for too low or too high voltage,can connect with the power generator.
 Auto Restart while AC Recovery for Best power 500VA/600VA/650VA 
 This model will automatically switch to battery mode and power the load via battery until battery low .