I’ve got 2 Kwikset 910s. One shows 60% battery and I’ve had the same batteries in for over a month. The other I just replaced with brand new Duracells, and it shows just 50%. As you can imagine, that lock reports low battery after just 2 to 3 weeks.
It’s been that way since I’ve had it. Did I just get a bummer lock? The deadbolt goes in / out freely and no binding. Since the first snow (some time ago) we’ve actually used the back door almost exclusively.
I replace the batteries and the ones I take out are testing at 1.47V. Could the lock be that picky about voltage?