We already received feedback for an Auto Lock to ignore the door sensor. This is a thing we are looking into.
Regarding batteries: If you are experiencing problems with battery warnings, please contact our support via phone or at contact@nuki.io for direct help and check if something is causing this issues.
EDIT: I moved this from a feature request to the question section. I hope this is o.k. for you. If you want to contribute the the door sensor discussion you can also add a comment to the existing, similar feature request: