Aqualin YL21077 - Page 4

Battery sign:
Voltage is over 3V: battery sign is full(as picture 7)
Voltage is at 2.6V-3V: battery sign is half(as picture 8)
Voltage is below 2.6V: battery sign is empty and the sign will blink quickly(as picture 9)
(valves are closed, auto and manual watering are both closed)