The recommendation for the older technologies is to leave the device plugged in for seven or eight hours, even if fully charged.

An external device plugs into the existing port and then has multiple places to connect.

The device plugs into the connector on cars that mechanics use to diagnose problems.

The tiny device, which is available for about $300, plugs into the bottom of most hearing aids that are designed to be worn behind the ear.

The device plugs into a car's cigarette lighter.

The device plugs into a standard wall outlet and generates a magnetic pulse about once a second.

Once the port is found, the devices plug in easily.

These devices generally plug into the diagnostic port although in some cases the reprogramming is done directly on the circuit board.

The protective device will automatically switch off when the devices plugged into it are drawing more power than the strip is rated to supply.

This simple device literally plugs a user in to cyberspace.