LaneiaAigrie803 months ago000Should it be left plugged in during use? Show in original language (French)anoetzli3 months ago000 Helpful answerYes, Accu is only for safety in the event of a power failure.Show in original language (German)CommentLaneiaAigrie803 months ago000However, it has a battery that needs to be charged for 2 hours.Show in original language (French)Comment