[Trac #596] inconsistent battery charge state indications

[Zarro Boogs per Child]

#596: inconsistent battery charge state indications
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 Reporter:  Quozl                   |        Owner:  ted.juan
     Type:  defect                  |       Status:  new     
 Priority:  blocker                 |    Milestone:  BTest-2 
Component:  hardware                |   Resolution:          
 Keywords:  ray.tseng at quantatw.com  |  
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Comment (by Quozl):

 All three units were left on AC overnight, with batteries still installed.
 About 14 hours later, the following indications were observed:

 On unit Quozl 1 and Quozl 2, the red battery LED is flashing, at about a
 four second interval.  The olpc-battery driver reports "present critical".

 On unit Quozl 3 (which last night had refused to admit loss of battery
 capacity) the green battery LED remained lit for much longer, but has now
 entered the same red flashing state.

 On all units, the battery case is quite warm to the touch, as is the area
 of the screen behind the lower left.

 Quozl 2 red LED flash timings
 2006-12-20 11:42:07.145261000+11:00
 2006-12-20 11:42:11.408156000+11:00
 2006-12-20 11:42:15.592378000+11:00
 2006-12-20 11:42:19.805560000+11:00

 Quozl 1 red LED flash timings
 2006-12-20 11:43:23.223914000+11:00
 2006-12-20 11:43:27.432314000+11:00
 2006-12-20 11:43:31.626666000+11:00
 2006-12-20 11:43:35.776817000+11:00

 I'm going to shut the units down, remove AC power, and remove the
 batteries, wait ten minutes, and then restore batteries.

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Ticket URL: <http://dev.laptop.org/ticket/596#comment:4>
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