OpenSprinkler › Forums › Comments, Suggestions, Requests › bad date on reboot or main supply failure › Re: Re: bad date on reboot or main supply failure August 11, 2014 at 3:37 pm #27771 RayKeymaster The only reason I can think of, if the RTC does not remember time when the power is off, is either a loose connection on the CR1220 battery, or the battery is plugged in reversely.
