I would suggest getting a GPS system installed by a professional, as it is easy to do it wrong and have dead battery problems. That can be pretty inconvenient.
Yes, the electronics gps system is battery powered. There are now a number of battery powered gps units available.
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Yes GPS is plugged in and comes on all by itself, it can drain the battery.
For an external GPS, yes, assuming that battery is not also dead.
If it is your car no, the GPS is also yours to do with as you wish.
In order to install a Real Time GPS Tracker in your vehicle you need to find an always on 12v wire (consult you car's manual) and hardwire your GPS device to the car by attaching it to that 12v wire.
An in-dash gps system would be better in a car. Handheld gps systems seem to generally have smaller screens and are made specifically for outdoor use. An in-dash gps is designed for in car use.
The average battery life for a Garmin c330 GPS system appears to be 3 to 4 hours. It states that the battery can last up to 8 hours, but only when not in use.
The Garmin approach s1 GPS watch is a more portable alternative to the traditional car based GPS system. The portability of the GPS watch is its biggest advantage. Unfortunately it does not have all of the capabilities of a car based GPS system.
Yes, it can be tracked. Just call the manufacturer with the gps system's serial number or the car manufacturer to get info on the gps system.
It is not recommended or legal to be using anything handheld especially a GPS system in a car while driving. However, passengers can help by using the handheld GPS system for you instead.
There are many online shops that provide GPS system for cars. Amazon.com is one of online shop that provides GPS system for cars. You can visit www.amazon.com