How often do you change the batteries in your smoke detector?

How often do you change the batteries in your smoke detector?
Twice a year
126  33.6%
Once a year
100  26.7%
Once every three months
67  17.9%
Once a month
65  17.3%
Once every two years
12  3.2%

Number of Voters  :  375
First Vote  :  Monday, 09 October 2006 08:01
Last Vote  :  Thursday, 17 January 2019 20:28
UA-61032071-1