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From: akcs.azz710@hpcvbbs.UUCP (Jeffrey R. Broido)
Newsgroups: comp.sys.handhelds
Subject: Re: HP 28S Battery Replacement
Message-ID: <27275cf4-3d7.1comp.sys.handhelds-1@hpcvbbs.UUCP>
Date: 25 Oct 90 22:40:06 GMT
References: <15642@mentor.cc.purdue.edu>
Lines: 10

By all means, change the batteries.  Get the new ones handy and be
prepared to whack the case to get the old ones out (they were a very
tight fit on both my 28C and 28S).  Also, be VERY careful to get the
polarity right.   If you put the new ones in backwards, you probably will
lose memory.  Also, when you slide the cover back, be very careful you
get it aligned right.  MAKE SURE THE CALCULATOR IS OFF BEFORE YOU START
THIS, AND DON'T HIT THE ON KEY WITH THE BATTERIES OUT!  Good luck.  I did
it quite a few times with no trouble.  Also, buy good batteries.  I did a
battery test recently and Radio Shack, Eveready Energizer and Kodak came
out better than Panasonic, Duracell, Ray-O-Vac, etc.