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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Peanut Eater nailed it. Leave it off unless you need it. In confusing situations you can turn it on and navigate to a waypoint. Waypoint spacing is generally always under 7/10 mile so unless you walk clear out of the area you can get located again without too much pain. (at least on the official route) A fresh set of batteries every week with a spare set just in case should be enough. Lithium batteries last much longer than alkalines and weigh less. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>We carried a Spot 1, had it on continuously in tracking mode, and changed the batteries every two weeks. Never had it go dead. If you are not using tracking mode, there really is no reason to leave a Spot on all the time. If you just turn it once a day and send a “OK” message they will go a really long time on a set of batteries. (If you do this, be sure to let the Spot run for 5 minutes or so before you send the message or the gps position it sends may be way off)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I think it a good idea to carry a lightweight compass other than the one built into the GPS. (and know how to use it) You won’t have to run the GPS as much which will extend battery life, and you will not be totally disabled if for some reason it stops working. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I carried a rechargeable Petzl headlamp last year and it worked great. I read every night for an hour or so and it would easily go 2 weeks between charges. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>best wishes,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Jerry Brown<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="mailto:bcss@bresnan.net"><span style='color:blue'>mailto:bcss@bresnan.net</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="www.bearcreeksurvey.com"><span style='color:blue'>www.bearcreeksurvey.com</span></a><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> cdt-l-bounces@backcountry.net [mailto:cdt-l-bounces@backcountry.net] <b>On Behalf Of </b>Thomas Jamrog<br><b>Sent:</b> Tuesday, March 13, 2012 8:39 AM<br><b>To:</b> Peanut Eater<br><b>Cc:</b> cdt-l@backcountry.net<br><b>Subject:</b> Re: [Cdt-l] GPS & Battery Usage<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Very useful details on battery strategy when carrying iPhone and GPS. Thanks. <o:p></o:p></p><div><p class=MsoNormal>Uncle Tom <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Mar 13, 2012, at 10:13 AM, Peanut Eater wrote:<o:p></o:p></p></div><p class=MsoNormal><br><br><o:p></o:p></p><div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I didn’t leave mine on – I just switched it on when I felt I needed it. With the average period between resupplies of 5 days, I just didn’t want the challenge of carrying all of those batteries that would be needed if I had it switched on for the 15 hours a day that I was walking. I carried a DeLorme PN60W that comes with a SPOT. I also had an iGo charger that took a couple of AA batteries and could recharge my phone if needed. That way I had a spare pair of batteries should any one of the gps, Spot or phone need them before the next resupply. At each resupply I would get another pair of batteries – the 8X lithium version. I would only switch on the gps when I needed to check my location. Occasionally, I’d leave it on but that would typically only be in areas where there was lots of snow and lots of trees where normal map reading was more challenging. As you point out, the disadvantage of turning it off is that if you do go wrong there isn’t a track in the gps that you can follow back to where you went wrong. When that happened to me I would just set a bearing back to the trail usually somewhere ahead of me and that was sufficient to recover. Obviously you have to weigh up the terrain and pick an appropriate route back . Overall, I ended up with more batteries than I needed so typically I could go 5 days with three devices and not run out of power. The Spot was only on to send messages so that never needed new batteries. I carefully power managed the phone so I didn’t need to use the iGo very often. The gps was the biggest power user, but with care I got on average about a week on a pair of lithium AAs. I didn’t experiment with rechargeable batteries because I didn’t want to have to carry anther charger.</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hope that helps.</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Peanut Eater</span><o:p></o:p></p></div><div><p class=MsoNormal><a name="_MailEndCompose"><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span></a><o:p></o:p></p></div><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;border-width:initial;border-color:initial'><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><a href="mailto:cdt-l-bounces@backcountry.net">cdt-l-bounces@backcountry.net</a><span class=apple-converted-space> </span>[<a href="mailto:cdt-l-bounces@backcountry.net">mailto:cdt-l-bounces@backcountry.net</a>]<span class=apple-converted-space> </span><b>On Behalf Of<span class=apple-converted-space> </span></b>Barbara Nash<br><b>Sent:</b><span class=apple-converted-space> </span>Tuesday, March 13, 2012 6:10 AM<br><b>To:</b><span class=apple-converted-space> </span><a href="mailto:cdt-l@backcountry.net">cdt-l@backcountry.net</a><br><b>Subject:</b><span class=apple-converted-space> </span>[Cdt-l] GPS & Battery Usage</span><o:p></o:p></p></div></div></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'>I have a couple questions about people's experience with GPS/battery usage on the CDT. I have a Garmin 62S. </span><o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'> </span><o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'>1. I have read a few folks saying that they keep their GPS on continually/never turn it off while walking . . . so maybe 10 hours/day. I can see that this isuseful if you need to backtrack, might make it easier to "find" yourself and keep in synch with a paper map. But . . . I am wondering if folks generally do this or if they turn their GPS on and off . . . which might conserve batteries.</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'> </span><o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'>2. The best battery options seem to be the widely available lithium batteries (disposable) or a rechargeable like Sanyo Eneloop. Has anyone used the Eneloops. Did they hold up to the published stats . . . 15-20 hours and hold their charge (for practical purposes) forever when not in use. Did you have trouble dinding places to recharge your batteries on the CDT.</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'> </span><o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'>3. Anything else you would like to say about this topic?</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'> </span><o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'>Barb (aka Late Start)</span><o:p></o:p></p></div></div></div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif"'>_______________________________________________<br>Cdt-l mailing list<br><a href="mailto:Cdt-l@backcountry.net">Cdt-l@backcountry.net</a><br><a href="http://mailman.backcountry.net/mailman/listinfo/cdt-l">http://mailman.backcountry.net/mailman/listinfo/cdt-l</a><o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>