SentriLock lockboxes require an adaptor for battery replacement. You are able to purchase a battery adaptor separately to have on hand in case your SentriLock lockbox needs to have the battery replaced.
Each SentriLock lockbox battery adaptor costs $20 and is available to purchase through the "buy" link found under the SentriLock icon on the billing page of your account. Note: Only Administrative users will have access to the billing page.
Looking to change the battery on a CodeBox lockbox instead? Click here.