Hello Valued Vaultek Customer!

To better assist you, we have included a VT Series video tutorial for installing the lithium-ion(18650) flattop battery. To determine which safe model you have, please refer to the black FCC label on the bottom exterior of the safe.

NOTE: Please be sure to place the silk ribbon behind the battery for easy removal of the battery.

If the above does not help to resolve the experienced issue, please let us know at your earliest convenience by creating a ticket with our support team ([email protected])

Kind regards!
The Vaultek Support Team