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- 1). Push your laptop computer's battery firmly into the unit's battery input. If your laptop is connected via its AC adapter, the battery must be plugged in all the way to provide the necessary power to turn the machine on. If the battery isn't firmly inside the compartment all the way, a connection won't be made and hitting "Power" will do nothing. Push your battery inward towards the center of the laptop to see if it moves. If it does, it wasn't in all the way and you should now press "Power" again.
- 2). Plug your laptop's AC adapter into the AC adapter input on its case. If your battery is completely plugged in but your laptop still won't turn on, the battery's power could be dissipated. Plugging your laptop's AC adapter into the case will give the laptop the power it needs to turn on and will also begin to charge its battery.
- 3). Remove the battery, unplug the AC adapter and hold down the "Power" button on your laptop computer for 30 seconds. If your laptop is holding an excess charge or the motherboard has a short, this could cause your laptop to not turn on even if it is plugged in and the battery is charged. Holding down the "Power" button will release this excess charge. Put your battery back in and then try to turn on your laptop computer again.
- 4). Check that the power outlet that is being used for your laptop's AC adapter actually works. Try to plug your AC adapter into different outlets in your home and see if your laptop will power on. If it will, then the original outlet you were using for your laptop computer's AC adapter wasn't operational.
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