The computer works on electricity and not on batteries , the backup battery is used for special cases only.
In the event of a power outage in the middle of watering, the tap will remain open until the power returns,
To prevent this case we add the backup battery.
In the event of a power outage, the backup battery will close the taps and the computer will go to sleep mode.
In this state the computer does not work but waits for the electricity to return when the electricity returns (after a few minutes)
The computer restarts itself and returns to normal operation.
The backup battery is added when the computer is connected to electricity, if the backup battery was inserted before connecting the computer to electricity,
After connecting the computer to electricity, it will be necessary to restart the computer by briefly pressing the reset button (black button on the front).
