Does the standard Tiny Traveler Classic camera have an internal battery, or does it always need to be connected to a cable?

The standard camera does not have a built-in battery and needs to stay connected to power while in use. For cord-free camera use, you can use the optional Portable Power Bank Cradle.

Full Answer:
The standard Tiny Traveler Classic camera does not have a built-in battery, so it needs to be connected to a power source while in use.
For everyday driving, plug the camera into your vehicle’s power port using the included camera power cable. The monitor can run on its own battery, but the camera still needs power in order to send video to the monitor.
For a completely cord-free setup, you can use the optional Tiny Traveler Portable Power Bank Cradle, which powers the camera without needing to plug it into the vehicle.