I have the Weatherboy now for 4 years running and just the second (!) Made battery change. The LCD display was still good but the temperature of the external sensor is no longer displayed. But since you always have to start also the base unit again to connect the outdoor sensor (which is, unfortunately, 0.5 points deduction) I have exchanged all the same batteries. The second half-point deduction is available for the adjustment keys to sensitive: if the morning at 6 ° ° clock goes off the alarm, because once again the alarm was accidentally activated while dusting, which is a bit disturbing. Otherwise, I am very satisfied with function and appearance.