How to Replace the Battery in Your Schlage Door Lock

A red blinking light on a Schlage lock signals a low battery and requires prompt replacement to maintain electronic functions. Identify your lock type (deadbolt or lever), access the interior battery compartment, remove the old 9-volt battery, install a new 9-volt in the same orientation, listen for a confirmation beep, replace the cover, and test the lock. Use quality batteries, keep a spare, and perform basic maintenance to ensure continued keyless and smart features.