The Davis Square Community

No issues in the six years I've had them. I have those locks on both my front door and back door, and the front door battery is ~1 year newer than the back door, so I figure that if one battery runs out I can always get in the other door. There's also a red warning light when the battery starts running low. I try to remember to change each battery every 2 years anyway (before the warning light comes on) but I'm not particularly anal about that.