[Dogpaws]

What brand is your lock. Ours is a Baur and is very sensitive to low battery power. Ours stopped locking and unlocking, so I changed the batteries and we were back in business again. When I checked the batteries that I removed with a battery checker, they showed at the low end of the green "good to go" area, but above the yellow area. Because of the sensitivity to less than acceptable voltage, I installed the best quality Duracells that I could find.