source:power adapter Popular:adapter release time:2021-04-16 09:38:17 Article author:sznbone
The power supply of a laptop computer includes two parts: a battery and a power adapter. The battery is the power source for outdoor office notebook computers, and the power adapter is an indispensable device for charging the battery, and it is also the preferred power source for indoor office.
1 battery
The nature of laptop batteries is not much different from ordinary chargers, but manufacturers usually design and package the battery according to the characteristics of the laptop model, and encapsulate multiple rechargeable battery packs in a designed battery housing. in. At present, mainstream notebook computers generally use lithium-ion batteries as a standard configuration. As shown in the picture on the right, in addition to lithium-ion batteries, the batteries used in notebook computers include nickel-chromium batteries, nickel-hydrogen batteries, and fuel cells.
2 Power adapter
When using a notebook computer in an office or a place with a power source, generally use the power adapter of the notebook computer, as shown in the right picture. The power adapter generally can automatically detect 100~240V alternating current (50/60Hz), and provide a stable low-voltage direct current (usually between 12~19V) for the notebook computer.
Notebook computers generally have an external power adapter, which is connected to the host with a cable, which can reduce the size and weight of the host. Only a few models have the power adapter built in the host.
The power adapters of laptops are fully sealed and miniaturized, but their power is generally up to 35~90W, so the internal temperature is high, especially in the hot summer, when you touch the charging power adapter, you will feel hot when you touch the charging power adapter.
When the laptop is turned on for the first time, the battery is usually not full, so the user needs to connect the power adapter. If the laptop is not used for a long time, it is recommended that the user unplug the battery and store the battery separately. In addition to using the battery, it is recommended that the battery be researched and discharged at least once a month. Otherwise, the battery may malfunction due to over-discharge.
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