Quote:
Originally Posted by retiredguy123
Not correct. This is from the Hunter manual. The battery is not needed to save the programming of the controller, per the last sentence.:
"Connect a 9-volt alkaline battery (not included) to the battery terminals and place in the battery compartment in the front
panel. The battery allows the user to program the controller without AC power. Watering will not occur without AC power.
Since this controller has non-volatile memory, the program clock and calendar will be retained during a power outage even if no
battery is installed."
Note that I don't have a battery installed, and I have never lost my programming during many power outages.
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You are correct. I was misinformed.
I could have sworn that my 2005 vintage controller stated that the 9V battery was used in order to maintain the time and date and the programming.
But that was back then….