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Why does my laptop boot only with the AC adapter?


I recently purchased a Compaq Presario R3003AP notebook second hand. When the notebook battery is in position, the system does not boot up. It tries to boot up for about 15 seconds then powers off instantly.When I put the AC adaptor in, the same thing happens (the battery still in place). If I remove the battery and only use the AC adaptor, the system boots up fine and Windows XP installs fine and the notebook can be used for hours. As soon as I install the battery (with AC adaptor on) the system shuts down after 20 seconds (always 20 seconds??). I have tried the troubleshooting sites. Is there a problem with the battery? Or the computer? Please help, the notebook otherwise is GREAT!




This question was answered on May 2, 2005. Much of the information contained herein may have changed since posting.

It sounds like the battery is the cause of your troubles It may be that the battery doesn’t hold enough of a charge anymore (battery problems are the main reason people sell their laptops) Or it may be that the physical characteristics of the battery are obstructing power to get to the system via the AC adapter Check for any damage to the contacts on the battery.


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Posted by Ian of Chandler-Gilbert Community College on May 2, 2005