Charging things in your car


#1

I have a TomTom One GPS unit and a XM Roady XT. They both get plugged into the DC to keep a charge. Right now, everytime I get out of my car, I unplug them. Do I need to, or can they stay plugged in. If I leave them plugged in, I can leave the GPS on so it has it’s signal and is ready to go when I get into my car next. Right now, I turn it on and it takes 5 minutes or so get a signal, not helpful when I don’t know where I am.


#2

How much power do they draw?


#3

Over and above the issue of whether your GPS unit is up and running when you start your car, there is another issue, namely theft. Lately there has been a lot of publicity about GPS units being items that are very likely to lead to a broken window. And, needless to say, the hapless owners have returned to find that their GPS unit was missing. Just as radar detectors (or fancy after-market audio systems) once led to broken windows, the GPS units are the new targets of smash & grab thieves.

Law enforcement authorities and car insurance companies suggest that GPS units be taken out of a car when it is parked, and that the suction cup mounting units be disconnected and hidden from view, so as not to lead a thief to believe that the GPS unit is somewhere in the car. Even if you think that you live in a “safe” area, when one travels to a different neighborhood, it is difficult to know whether that area is being trolled by potential thieves.

So, I would suggest that you forget about the issue of charging these items while the car is parked and instead focus on protecting these items from theft. A GPS unit that takes a few minutes to begin functioning is still more beneficial than a broken window and a missing GPS unit.


#4
I don't like to leave mine out where it can be seen.  I tend to leave it pugged in if I am only going to be gone for like five minutes and it is in a public area.  I don't know about your TomTom but mine will function for about four hours on its internal battery.