I have an IBM ThinkPad 755CD which run perfectly except when you disconnect the power.  The battery is fully charged, but after disconnecting the AC power or powering up with out the AC power on, within two minutes it just shuts down.  It was donated to a Cub Scout troop and I was hoping to get it working for them.  I have searched IBM's site but have found no information on problems like this.  Does anyone have any ideas on how I could fix it?

Mary Wolden

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