Large sliding connectors work the same as smaller sliding connectors, usually sliding into the side of a socket. Typically, these connectors have multiple cables attached and are commonly used for laptop batteries.

Most of the time, these connectors will have a lip or a tab along the top that can be used to push the connector out of its socket.

If there's no clear spot to use a tool, check out bundled cable connectors.

To disconnect, use the wide end of a spudger to push on the connector tab to slide it out of its socket.

It may take a lot of force to disconnect the cable. Go slowly, and don't pull on the cables.

To reconnect the cable, align the connector and use a spudger to push against the tab to fully seat the connector back into the socket.