In contrast to windup cuckoo clocks, which require rewinding every one, two or eight days, quartz cuckoo clocks use batteries to run continuously...
Battery cuckoo clocks run for approximately one year on a brand new set of batteries depending on the type of battery used and the amount of animated motion built into the clock. A small bird moving in and out of it’s little house once an hour is going to take a lot less battery power than large group of animated characters in a moving scene out of their housing, around to the front of the clock, sounding the cuckoo noise, playing the accompanying music, and moving them all back inside again as often as every half hour, as is the case with some ornate clocks.
Battery powered cuckoo clocks allow for far more activity than the old fashioned mechanical cuckoo clocks were capable of, and whether you prefer the simplicity of the earlier works to the battery powered ones remains a matter of personal choice
