Review on ChargerCity 12V Car Charger Adapter Cord for Magellan Roadmate 1700 LM MU GPS - Stay Powered on the Road! by Ken Booker

I bought this just before taking my car on a 1200 mile round trip. This charger only works intermittently. The ride is very dangerous and after about every kilometer it stops working. Try inserting a stronger cable, tapping the screen, turning the GPS on and off; Anything that requires a cable to power the GPS device adds to the distraction while driving. And we know what that can lead to. I then bought a Magellan power cable (double the price of what I bought, I'm happy to pay for something that works) and now my GPS works perfectly. I wasted my money on this ChargerCity device. .