Garmin Mapsource

[Norwood]

Early on in this thread, the question was asked on recommendations for a GPS,purchase. What ever brand or unit within brands, I would recommend purchasing a unit with an internal battery -preferrabaly rechargeable). I like to take my unit off the bike and take into the tent or a resturant to do some quick planning, alos been know to take it with me in a friend or family members when I ride in to visit with them.
I know some of the Garmin streepilot series only operate from the vehicle battery - my brother has a 2620 or 2720 that is this way and the only way to show him something on it is to go sit in the car. I suspect Norwood's is the same way since he has been freezing his buns sitting in the garage trying to sort some GPS issues. I like doing this in th cozy den.
another benefit of an internal battery is taking the thing for a walk if you break down and since I ride some off road - this is a big plus.
While at it I think I will start another thread on GPS tips and questions.

Gary

I had the battery pack with the SPIII, advantage yes... but had some issues with unit get as hot as a firecracker a few times with battery pack...but could have been the unit or the battery pack or combination of both...

[Wrong Way]

I have the SP111 Plus Colormap with batteries. They work well off the bike but it can go through 6-AA's pretty quick.