Article 29493 of sci.geo.satellite-nav:
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From: kunzd@clark.net (David Kunz)
Newsgroups: sci.geo.satellite-nav
Subject: Battery Life Tests
Date: 3 Jan 1997 16:58:11 GMT
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There's been a lot of discussion about rechargable alkaline vs. single
use alkalines.  While surfing around for stuff for and about my Garmin
GPS-38, I stumbled on a gif-graph of battery life for a GPS-45.  I
won't post it here (this isn't a binary news group), but I'll be happy
to email it to anyone who *emails* a request to me (unless they're too
many, then I will post it -- wish that I could remember where I got
it) -- but... steady drain into an 11.3 ohms...

              "Empty" Meter     Turn off
               1.1v/cell        ~0.875v/cell
Lithium         17.5 hr           19 hr
Alkaline        13                19
Renewal         6                 11
Carbon-Zinc     4.5               6.5
NiCad           5.5               5.5

-- 
David Kunz