NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: What do offshore recreational navigators really do?
From: Courtney Thomas
Date: 2005 Jun 8, 07:54 -0500
From: Courtney Thomas
Date: 2005 Jun 8, 07:54 -0500
I'd appreciate the opportunity of having such a plug when you're done. Thank you, Courtney On Tue, 2005-06-07 at 17:09, Brooke Clarke wrote: > Hi Peter: > > Modern battery chemistries, like Lithium Sulfur Dioxide and others have > a 100% capacity shelf life which is stated to be at least 10 years and > has yet to be really figured out. I have some of these batteries that > test at 100% after 13 years. The common "123" photo battery is in this > very long shelf life category. Of course you would need a GPS receiver > that used a battery of this type, like the military PLGR (AN/PSN-11) or > use and adapter. One of the products I'm currently desigining is a plug > to fit the very common BA-5590/U LiSO2 battery for just such applications. > > But your point is well taken. Keep It Simple Stupid (KISS) results in > all kinds of benefits. > > Have Fun, > > Brooke Clarke, N6GCE > -- > w/Java http://www.PRC68.com > w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml > http://www.precisionclock.com > > . . . . > >>... for $1K I could buy four high-quality GPS receivers and a whole lot of > >>batteries. > > > > > > As an engineer you might like to calculate the quantity, weight, cost, and > > keeping quality issues of amassing enough batteries to power handheld GPS > > receivers over the period needed for an extended passage, along with the > > difficulties involved in replacing them regularly along the way, in what are > > the charmingly undeveloped places we sail so far to find. It doesn't stack > > up.