Hey Gaddiel,
I'm not sure if the problem is the same but my 60CS had a bit of trouble with batteries not making contact all the time. I got a small piece of small cell foam (from some kind of packaging at Wal Mart). This was cut into small blocks about .5 X .3 inches. These were wedged between the two parts of the battery contacts. They are folded metal that forms an inverted V and the foam is wedged inside if that inverted V keeping it from collapsing so much. No more problem. Good luck. I do have an old GPSIII that you are welcome to use If you choose to send yours off to Garmin. Just let me know.........poppy
May those who love us, love us. And those that don't love us, may God turn their hearts; and if he doesn't turn their hearts may he turn their ankle so we may know them by their limp.... An Old Gaelic Blessing