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laptop problem

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by netcomss1

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i have compaq laptop it starts with a/c on but doesnt start on battery .but it is started with a/c on it works on battery too . battery is new and fully charged

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by robo_dev

if you boot on A/C and unplug it, the laptop runs on battery power alone?

In general, if the laptop does not start on battery, the battery is probably defective. It is not uncommon for a battery to be able to charge/discharge, but fail to carry the load.

More importantly, is it a compaq/HP battery or a generic replacement? Many of the no-name replacements are of poor quality, and are not 100% compatible with the laptop device.

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