Hand-Cranked Door Locks

Ring Lets a Dial Wake Its Smart Deadbolt After a Dead Battery

Ring is moving into smart locks with a deadbolt that can wake itself after a drained battery, helping homeowners avoid a lockout at the door. Its power dial is turned by hand to generate enough charge to open the lock, eliminating the need for a hidden spare key.

The rechargeable pack is designed to last about a year, so a lightly used home does not require constant check-ins. Through the Ring app, owners can also grant recurring entry to dog walkers, reducing some of the key handoffs that usually come with part-time access.

In daily use, the lock stays simple: a resident can tap a fingerprint reader for quick entry and reach for the dial only if the battery has gone flat. It fits a standard single-cylinder deadbolt and is slated for U.S. sales in early 2027, pending FCC approval.

Image Credit: Ring

Self-powered Access
Manual energy harvesting in connected locks points to hardware designs that maintain critical functions when batteries, grids, or backup keys fail.
Battery-fail Resilience
Smart home products with last-resort mechanical charging create new expectations for reliability in security devices that cannot afford downtime.
Temporary Digital Entry
App-based recurring permissions for service providers expand the role of smart locks from simple access control to household logistics infrastructure.

Who This Affects Most

Smart Home Security
Connected deadbolts with biometric entry and emergency power features raise the competitive bar for residential safety and convenience.
Property Management
Reliable digital access systems support remote turnover, maintenance visits, and guest entry without the operational friction of physical key exchanges.
Pet Care Services
Scheduled smart lock permissions give dog walkers and home service providers a more secure framework for recurring visits to private residences.
SCORE
3.7 out of 10
GENDER
50% Men50% Women
MARKETTop markets: North America
GENERATION
  • Gen Z
  • Gen Alpha
  • Millennial (primary audience)
  • Gen X (primary audience)
POPULARITY
Popularity 6%
Activity 4%
Freshness 100%