How often should I change garage door keypad batteries?

A garage door keypad is an electronic device used to open and close a garage door. It is a handheld device that is commonly used by driver to open hus garage upon approach so he can drive straight into the garage without leaving their car. The good thing about garage door keypads is that they do not go straight from working fine to not working at all. This means there will be time for you to notice that the battery is dying and opportunity for you to change it. You can tell when the battery is dying as you may need to press the open button harder than before, press it a few times before it will work or position yourself closer to the sensor before it will pick up signal.