NavList:

   

Reply

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.

   

Reply