[Trac #637] Battery won't charge

[Zarro Boogs per Child]

#637: Battery won't charge
----------------------+-----------------------------------------------------
 Reporter:  jg        |        Owner:  mfoster 
     Type:  defect    |       Status:  assigned
 Priority:  high      |    Milestone:  BTest-2 
Component:  hardware  |   Resolution:          
 Keywords:            |  
----------------------+-----------------------------------------------------
Changes (by mfoster):

  * status:  new => assigned

Comment:

 Hi, Jim!

 During my last trip, during a systematic power review after I'd asked for
 after encountering a defective input cap, we found a problem where a
 *very* low battery (less than 5V), would prevent the DC/DC converter from
 properly starting up, and the system could therefore not run at all.  You
 can verify that this is the case with your pack by starting up the machine
 on AC and then plugging in the pack while its running - the system should
 shut down as soon as the pack is installed.

 A circuitry change has already been made for B2 which provides for a
 "trickle" charge when the battery voltage is low, so B2 units will not
 experience this problem.

 Cheers!
 MarkF

-- 
Ticket URL: <http://dev.laptop.org/ticket/637#comment:1>
One Laptop Per Child <http://laptop.org/>