1, when there is an external power supply, access to the external power supply, the battery does not have to pull out, the current notebook, the motherboard has overcharge protection, will not cause damage to the laptop battery.
2, there is battery access, you can ensure that the computer hard disk will not be damaged when the sudden power failure, if there is no battery, the sudden power failure will cause damage to the mechanical hard disk in the work, serious may lead to file loss.
3, notebook computers are mostly used lithium batteries, after a long time of use will have loss, the way to ensure battery life is to plug in the external power supply as far as possible, in addition, lithium batteries taboo excessive discharge, therefore, when the notebook power is low (20%) below to try to find the power to charge.
4, long time will not cause damage to the battery, whether it is plugged in the battery or unplugged the battery, therefore, the laptop idle time is best not more than half a month, if there is a long time can not be used, the battery should be full first, to prevent damage caused by the battery for a long time in the state of low power. The above is based on the ordinary laptop in previous years, does not necessarily apply to the subject's notebook, for reference only.