Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!pasteur!ucbvax!hplabs!hp-pcd!hpcvlx!bw
From: bw@hpcvlx.HP.COM (Bill Wilhelmi)
Newsgroups: comp.sys.hp
Subject: Re: Problem with HP 110
Message-ID: <1170005@hpcvlx.HP.COM>
Date: 7 Apr 88 16:00:03 GMT
References: <4257@cup.portal.com>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 37


 >
 >Presuming that the battery is a NiCad, that is bad advice.  NiCads develop
 >a memory for how low they have been discharged.  If a battery has not
 >been allowed to discharge very low for a long time, it will take a set
 >and never discharge very low in the future.  You should discharge a NiCad
 >all the way down every three months to maintain its capacity.
 >
 >			David Smith

The battery in the HP 110 and the Portable PLUS is a lead-acid battery.
A lead-acid battery does well if the recharger is left plugged in as much
as possible.  If you ever let the battery get below about 20% without
immediately recharging it, you may snuff the battery for good.  I have
seen many 110s and P+ units where that was the case.  It has happened
to my P+ also.  NiCads on the other hand need to be drained before 
recharging, as mentioned above.  The 9114 disc drive uses a lead-acid
battery but the HP-IL ThinkJet printer uses a NiCad.  You therefore
need to treat those batteries differently.  

Don't let your Portable's battery discharge all the way.  You'll be sorry!
As far as replacing the battery in your Portable, the do-it-yourself method
is not for amateurs.  You need to send the unit to the nearest HP Field
Repair Center.  The documentation for the Portable (in an appendix, I think)
tells you where you can get your Portable repaired.



Bill Wilhelmi    
Hewlett-Packard Company
Corvallis Workstation Operation
Corvallis, Oregon 
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