Smart and keypad locks warn you before the batteries die. Here is what to look for and how to swap them.
Step-by-step guide
- Know the warning signs Slower bolt movement, a flashing red light, a low-battery chirp or an app alert all mean it is time.
- Use fresh alkaline batteries Fit new name-brand alkaline cells of the type the lock specifies. Mixing old and new shortens their life.
- Open the inside cover Slide or unscrew the cover on the inside of the door. No codes are lost when the batteries come out.
- Match the polarity Fit each battery the way the diagram shows and close the cover.
- Test and keep a backup Lock and unlock with a code. Keep the backup key or know your lock’s emergency power method.
When to call a locksmith
If the steps above do not solve it, or you would rather not do it yourself, see Smart Lock Installation or browse more how-to guides.
Rather have it done for you? Mobile Locksmith DC is open 24/7 with a 15–25 minute response anywhere in Washington, DC. Call (240) 202-2249.