#11793 NORM 12.1.0: Battery light flashes red on 100% charge

Zarro Boogs per Child bugtracker at laptop.org
Wed May 22 10:00:59 EDT 2013

#11793: Battery light flashes red on 100% charge
           Reporter:  tonyforster          |       Owner:  pgf          
               Type:  defect               |      Status:  reopened     
           Priority:  normal               |   Milestone:  12.1.0       
          Component:  embedded controller  |     Version:  not specified
         Resolution:                       |    Keywords:               
        Next_action:  never set            |    Verified:  0            
Deployment_affected:                       |   Blockedby:               
           Blocking:                       |  

Comment(by peasthope):

 Replying to [comment:12 rsmith]:
 > Its not clear in your earlier test if the laptop is suspending or not.
 For now just run your test as you have before but please run olpc-pwr-log
 first.  Even if the laptop is suspending it will wake up on 1% battery SOC
 changes and log the results.
 > When you get a flashing red ...

 OK, flashing red this morning.  The screen is dark but pointer or keyboard
 input wakes it.  The log started running last evening, is dated 130521 and
 is attached.

 > ... please follow this sequence:
 > Plug up external power and stop at OFW by pressing the esc key when you
 hear the startup sound.  Then at the ofw 'ok' prompt run 'watch-battery'

 ok watch-battery
 AC:on Battery:BYD LiFePO4 100% 7.47V 0.17A 33C error charging MPPT

 > Make a note of the error and then remove all power from the laptop both
 external power and the battery.  Then only connect up external power (no
 battery) boot the laptop up to terminal and stop powerd 'sudo service
 powerd stop' then run 'olpc-pwr-log'. It will wait for you to insert the
 > Insert the battery and let it charge.

 Yellow switched to green not immediately but after minutes.  I was busy
 and didn't watch.  The log started this morning, dated 130522 and is also

 > Repeat this entire scenario until you capture the conditions where you
 see the very quick yellow to green change.

 If another trial will help, let me know.

 Regards,             ... Peter E.

Ticket URL: <http://dev.laptop.org/ticket/11793#comment:19>
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