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#230672 - 08/26/11 02:55 PM Re: Three Hikers Lost for 3 days [Re: Roarmeister]
Russ Offline
Geezer

Registered: 06/02/06
Posts: 5357
Loc: SOCAL
Originally Posted By: Roarmeister
. . . In their case, a GPS receiver would have required a lot of batteries. Consider that they were out for 3 days plus they were lost for an additional 3 days, they may or may not have had enough batteries to last that long even if only using it for the hours they were hiking.
Again, only if you leave the GPS receiver on constantly. Turn it on, mark the position on both the GPS and on your paper map, turn the GPS off. 5 minutes out of the 9-18 hour battery life typical with a modern GPS. One set of batteries can go many days.

One fix with a GPS would have shown them they were nowhere near where they thought they were located.
_________________________
Better is the Enemy of Good Enough.
Okay, what’s your point??

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#230704 - 08/26/11 05:25 PM Re: Three Hikers Lost for 3 days [Re: BruceZed]
Eugene Offline
Carpal Tunnel

Registered: 12/26/02
Posts: 2995
They would have had to rest at night so the gps wouldn't be running all the time. even hiking half the day or more will be only one set of batteries per day. I carry a dozen in my backpack so thats 6 days of constant gps use though out the day.

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#230946 - 08/29/11 04:32 PM Re: Three Hikers Lost for 3 days [Re: Eugene]
plsander Offline
Newbie

Registered: 08/26/04
Posts: 39
GPS battery usage...

I recently returned from a trip to the BWCA, where I had my GPS on all the time that we were canoeing and portaging which was 4-6 hours a day for the four days we were out.

I usually use either NiMH or Alkaline batteries and expected to need a set of batteries for each day's travel.

My canoe partner suggested Lithium batteries -- and we completed the trip on a single set.

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