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Re: Use of NIMH in DR7

Subject: Re: Use of NIMH in DR7
From: Marty Michener <>
Date: Wed, 31 Mar 2004 13:43:07 -0500
At 06:35 PM 3/31/2004 +0000, you wrote:

>I recently bought a Sharp MD-DR7 minidisk and have a question about
>battery use.  The internal battery is a gum stick AD-N55BT.  The
>manual instructs to use an Alkaline AA battery in the external
>battery case, with a caution against use of a rechargable battery.
>I would prefer to use a AA NIMH in the external case.  I wonder if
>any harm would occur if I did use the NIMH battery?  Anyone have a
>clue about why the manufacture would not want the use of a
>rechargeable battery?
>1GDW

More probably it is a matter of insufficient voltage - Lithium and 
alkalines typically start their discharge curve when new about 1.6 or 1.7 
volts.  NiMH about 1.3 to 1.4  volts.  The old Nickle Cds were even lower - 
typically 1.25 volts.  The external battery can't charge perhaps if it is 
below 1.5 - just a guess, though.

I send my best regards,

Marty Michener, MIST Software Assoc. Inc.,  P. O. Box 269, Hollis, NH 03049

Spring has sprung, the grass has riz.  Wonder what kind of grass it is?
Graminoids - a new book for naturalists to identify sedges and grasses.
http://www.enjoybirds.com/HomePublishing/PubHome.htm#gram


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