Article: 8834 of comp.sys.laptops
Newsgroups: comp.sys.laptops
Path: uwm.edu!spool.mu.edu!torn!skule.ecf!drill.me!ie.utoronto.ca!xiao
From: [email protected] (Yan Xiao)
Subject: Another successful story of nursing dead battery
Message-ID: <[email protected]>
Summary: Open it up, find the bad cell, reverse its polarity, DONE
Keywords: plyers, fainted
Organization: University of Toronto, Department of Industrial Engineering
Date: Wed, 20 Jan 1993 15:48:07 GMT
Lines: 23


Here is my experience of fixing a dead batter.

Problem: the battery won't hold any charge, but can be used when AC plug
       is in (so what's the use of the laptop)

Hypothesis: The polarity of one of the cells is reversed somehow.

Treatment one: use a car battery to reverse the bad cell
       potential side effect: explosion
Treatment two: open it up and check for bad cell to see if it can be fixed.
       side effect: breaking the nice outfit

I chose the second method.  It required a little resolution to open
       the battery case (T1000SE), but not too bad.
       Using a simple flashlight bulb, I located the
       bad cell.  Then I used another 7.2v battery to apply to this
       cell, and verified its working by the flashlight.
       I had to use tape to bound the battery in good solid condition.

Results: it now can holds about 90min of charge.

Xiao

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