Battery Backup/Extender for Garmin and other GPS

I recently found a site that sells Battery Charger/Extenders (uses 4 AA Batts)for many GPSs:

Garmin - Mio - Magellan - Navman - Tom Tom

They also sell many other accessories for GPSs, Cell Phones, MP3 Players etc….

I purchased a "AA Battery Charge Extender for the Garmin Nuvi 750" and it was supplied with the proper tip so the Nuvi boots up in the NAVIGATION mode.

I tried it out with these results:

1. With the GPS on and in the Navigation Mode and screen backlight set to 20% and the Battery Backup Plugged in. I got 14 Hours and 22 Min. Before it went off due to low batteries.

2.With the GPS on and the GPS Simulator on and the Screen Backlight set to 20% with Battery Backup plugged in. I simulated following a route from my home in KY to NY City. I got 12 Hours and 5 min before it shut down.

The web site for this item and similar items is: http://www.gomadic.com

Hope you find this useful

I used another Battery Backup on my IQUE3600 over the last 4 years. It was used for my trips aboard the Amtrak where power outlets are sometimes not available. I track all my train trips on Amtrak and VIA in Canada so I can download the Tracks Log into MapSource on my PC. I can then view them either in MapSource or Google Earth. Now I will be able to do the same with mt NUVI750

H Hannah
Nuvi750 and IQUE3600