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To: Techdiver@opal.com
Subject: Re: ORCA computers/Lithium
From: Bill VanderClock <WVANDERCLOCK@be*.ed*>
Date: Thu, 06 Oct 1994 14:29:28 -0400 (EDT)
>
> 
> Battery prices Yup that's about right $20 for a lithium depending on what size
> battery your computer takes I would look into a rechargable. Radio shack also
> carries a large supply of different batteries. Rechargables though usually
> put out a different voltage than a regular lith of alkaline battery. This
> may make a differnce in the performance of the computer.  I use rechargables
in
> my dive lite but that's about it.
> jeff weidner
> -->
	Hold on...rechargables are great for non-critical devices but not for 
	critical ones like a dive computer. Rechargables provide full power 
	until they die, which happens quite suddenly compared to other 
	batteries. This then makes any normal battery checks (like the guage 
	on the Phoenix or the lower output of light from a flashlight) 
	usless. Two seconds before a rechargable dies, it registers full 
	power on any test you can give it. Because you can't accurately 
	predict when a rechargable will die, they are dangerous for things
	like dive computers. Don't get me wrong, I really like rechargables 
	and use them in most of my dive lights, strobes, and lots of 
	non-diving devices. The tip about batteries from RadioShack was a 
	good one but let me add that before they started carrying the Lithium
	batteries, I bought their 8 packs of alkline 9 volt batteries in my 
	local RadioShack for about $3.00. I dive enough that I was taking out 
	the battery anytime it got below 800 on the Oraca scale and was still
	saving money over the Kodak Lithium battery.(on a Delphi) The alkines
	still had enough omph to run my shower radio after I had taken them 
	out of the computer. As always, your milage may vary but please, be
	careful.

Bill VanderClock
WVANDERCLOCK@BE*

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