LaneiaAigrie801 month ago000Should it be left plugged in during use? Show in original language (French)anoetzli1 month ago000 Helpful answerYes, Accu is only for safety in the event of a power failure.Show in original language (German)CommentLaneiaAigrie801 month ago000However, it has a battery that needs to be charged for 2 hours.Show in original language (French)Comment