Alkaline Batteries: Provide more hours of service. Better for cold weather. Lithium batteries have seven times the life of Alkaline batteries. If I were making the hunt of a life time I would take a supply of lithium batteries.
Every once and a while you will see a couple of old guys out hiking in my neighborhood. Each has a Garmin gps hanging from his neck. The old lady’s think the guys are wearing heart monitors. Human failures become evident with one of the guys. About half the time his unit is not working because he is trying to get the last minute of use from a set of Alkaline batteries. The other guy is using good rechargeable NIMH. Batteries. You do not see his gps go dead. He also carries an extra set just in case. A matter of human nature.
I recommend a 12-volt power cord when in a vehicle. This saves your batteries, and allows you to have the background light on in your gps. It makes it easier to see the screen. I use a Gilsson Technologies cord which comes at about 1/3 the cost of a Garmin or Magellan cord.
If I were spending one or more nights on the trail Alkaline or Lithium batteries would be my choice. When hunting from home or a camp I us rechargeables. I have a 12 volt charger and just plug it into my pickup.
I spend a lot of time playing with my gps units, on walks, hunts, in the living room, and at the computer. I would go broke if I was feeding them none rechargeable batteries. On some days I have two in service, one with a grandkid and I having the other. Rechargebles are the answer for me.
I have friends who work for a government agency. They do critical emergency work 12 months a year. The temperature this morning in the area they work was –5 degree. Alkaline or Lithium batteries are the answer for them.
This hunting season I encountered a number of mornings with the temperature in the high 20’s. I did not have any problem with rechargeable.
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Garmin 60CX Mini USB to USB 1.0 cord comes as part of the 60CX package.
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Connect a USB GPS to your PC to see your position right on the map.
SWOSXUSB USB GPS Receiver $119.95
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Or, connect an industry-standard NMEA 0183 GPS receiver to your PC.View GPS Compatibility List
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Transfer waypoints directly from your PC into popular GPS receivers. Say goodbye to the task of keying in waypoints one by one. View GPS Compatibility List
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Support Home > GPS Compatibility (Serial and USB) - Terrain Navigator / Terrain Navigator Pro
TITLE (printable format) (email this document) GPS Compatibility (Serial and USB) - Terrain Navigator / Terrain Navigator Pro Created: 04/01/2004Modified: 12/28/2005
DISCUSSION IntroductionTerrain Navigator (and Terrain Navigator Pro) is compatible with a wide variety of GPS units. Transfers of routes, waypoints, and tracks to and from many GPS units is possible - as well as the ability to display a real-time position on the computer screen. The attached .pdf document lists and explains all of the various supported configurations.USB GPS UnitsMany popular GPS units now require use of a USB port for connection to the computer. This includes the Garmin GPS 60c, GPS 60cs, and GPSMap 276c. Because of the shift in protocols from standard serial connection (relied upon in the NMEA GPS specification) and this new USB configuration, version 6.04 (or later) of Terrain Navigator (and Pro) is required in order to communicate with these units. The free 6.04 update is available for customers running previous editions of Terrain Navigator (and Pro.)Click here for the Terrain Navigator 6.04 update.Click here for the Terrain Navigator Pro 6.04 update.Click here for the Terrain Navigator Pro, Network Edition 6.04 update.Terrain Navigator 7.0 (and Terrain Navigator Pro 7.0) is fully compatible with Garmin USB GPS units; no separate update/download is required." **
http://www.maptech.com/land/terrainnavigator/index.cfm?infopg=gpsSo that we understand, you cannot transfer Map Tech maps to a Garmin gps, BUT you can transfer waypoints, routes, and tracks both directions.