Power supply Problem

99.9% of all keyless locks do have a key tumbler, so in the event of a loss of battery power, you can still open and lock the lockset with a standard key. Most all key-less locks will indicate that the battery is getting low and needs to be changed, if you don't change the batery is time, the only way to open/close the lock defaults back to the actual key.

There is usually an access panel on the inside side of the lock that is opened by either sliding up or down on the panel, or removing the screw holding the cover in place or prying off the cover plate so you can get to the battery.

Remember the reason for having installed a "key-less" lock is to allow authorized access (family, friends, employees, etc.) to something without having to have duplicate keys that can be lost or stolen and to prevent having to re-key locks everytime something changes.

how do you open the keyless lock so I can change the light or battery

The procedure for recharging the lock varies depending on the lock, but ALL of our electronic locks can be recharged from the outside, thus preventing a lockout.