First, try to release static electricity after the battery can be charged, the operation method of releasing static electricity is as follows:
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1. If the laptop only has external batteries, the operation method is as follows: After the laptop is powered off, remove all the cables and connecting devices on the body, remove the external battery, press the power button for 10 seconds, press the power button three times, reinstall the battery after the operation is complete, connect the power adapter, and start again.
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2, if the notebook uses the \"built-in battery\" or \"built-in battery external battery\" power supply, you can find whether the back of the notebook there is a round hole, the hole near the word \"RESET\
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Second, reinstall the power management driver and power management software;
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Third, if the power adapter can not be turned on, you can replace the same type of power adapter test;
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Fourth, if it is charged, the battery cannot be turned on after unplugging the power adapter, it may be that the battery is not charged. Please check whether the battery latch is loose (except the model with built-in battery). If there is an external battery, try to replace the battery of the same model.
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5, the ambient temperature is too low may cause the battery to not charge, the relevant operation instructions are as follows:
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It is recommended to place the computer in an air-conditioned room or a heated room (preferably more than 15 degrees), in the shutdown state, let the computer slowly return to temperature for 1 hour, and then in the shutdown state, plug in the power supply and charge for about half an hour, and then start to confirm, observe whether the battery can be charged normally in the case of external power.