#9476 NORM Not Tri: XO1.5 and some rounded power adapters don't get along

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#9476: XO1.5 and some rounded power adapters don't get along
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           Reporter:  wmb at firmworks.com  |       Owner:  wad          
               Type:  defect             |      Status:  new          
           Priority:  normal             |   Milestone:  Not Triaged  
          Component:  hardware           |     Version:  not specified
         Resolution:                     |    Keywords:               
        Next_action:  never set          |    Verified:  0            
Deployment_affected:                     |   Blockedby:               
           Blocking:                     |  
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Changes (by tabitha):

 * cc: tabitha (added)


Comment:

 My Delta Electronics ADP-17FB A adapter, rated 12V at 1.42A is also unable
 to charge an XO-1.5.

 I have measured the current drawn by an XO-1.0 and an XO-1.5 B2. All tests
 were performed with the same partially charged battery at a little under
 12V (there is some drop in my wires). Each test lasted only a few seconds
 so battery SOC shouldn't change much.

  * A switched off XO-1.0 draws 1.2A
  * A switched off XO-1.5 draws 1.5A
  * A switched on XO-1.0 draws 1.5A during the initial boot up
  * A switched on XO-1.5 draws 2.2A during the initial boot up

 This may be related to
 http://wiki.laptop.org/go/XO_1.5_Tests#EC_Control_of_Charge_Current but I
 couldn't find any further information on the implications of failing that
 test, nor which revision of the XO-1.5 that failure relates to.

 Serial numbers:
 || XO-1.0 || CSN74802FFC ||
 || XO-1.5 || SHC9370114B ||
 || Battery || 00802090830110002030 ||

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Ticket URL: <http://dev.laptop.org/ticket/9476#comment:2>
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