1. Use a Physical Key
Many smart locks include a hidden keyhole for manual entry. If your lock supports this feature:
- Locate the key slot (it may be hidden under a cover or panel).
- Use the physical key to unlock the door as you would with a traditional lock.
Pro Tip: Always keep a spare key in a safe and accessible place (e.g., with a trusted neighbor or in a secure key box).
2. Use an Emergency Power Source
If your smart lock supports emergency power terminals, you can temporarily restore power using a 9V battery.
How to do it:
- Locate the external battery contact points (usually at the bottom of the lock).
- Hold a 9V battery against the terminals.
- Once the lock powers up, enter your PIN code or use your smartphone to unlock the door.
This feature is common in brands like Schlage, Yale, and August Smart Locks.
Pro Tip: Keep a 9V battery in your car or wallet for emergencies!
3. Unlock via Alternative Entry Points
If you have a smart home security system, some smart locks allow alternative access via:
- A connected security hub – You may be able to unlock the door from a linked smart speaker (e.g., Alexa, Google Assistant).
- A secondary smart lock – Some homes have multiple smart locks with different power sources.
- A garage door or side entrance – If another entry point is available, you may be able to enter and replace the battery from inside.
Pro Tip: Consider installing a secondary access point in case of emergencies.
Read also: What Happens If a Smart Lock Battery Dies?