A notebook pc typically has two sources of power. The notebook AC adapter usually comes from a rechargeable battery. There is also an AC adapter that provides a notebook AC adapter.
notebook AC adapter -Battery
All notebooks come with a battery; the laptop battery typically is slips into a slot on the underside of the notebook. Batteries have varying lives before they need to be re-charged. The life of the battery can last anywhere from two hours to five hours, it is completely dependent on the use of the notebook and the quality of the battery. The battery is recharged simply by plugging the ac adapter into the notebook and an electrical outlet. There is an indicator on the screen of the notebook that will advise when the power is low or when the battery is charging. There is usually a warning that is displayed that advises the user that the notebook battery power is low and that it is time to plug in the AC adapter. Plugging in the ac adapter will immediately start charging the battery and the lap top can still be used. There are some newer notebooks that have solar powered batteries as the notebook AC adapter. These solar powered notebooks hold a charge for up to two hours when charged with solar power, they are not available in great supply yet, but as technology improves availability will become more widespread.
AC notebook AC adapter
An AC notebook AC adapter usually comes with the notebook; it is the best AC adapter for a notebook and will provide the notebook with a continuous charge and avoid any potential problems with losing any information. Replacement notebook AC adapter ac cords can be quite expensive.
Issues
There have been some issues with notebook AC adapter ac cords in the last few years that involved the cords burning up and setting the notebook on fire. These faulty ac cords were recalled and the problem was fixed.
A notebook AC adapter is the only way a notebook will work. If there is a AC adapter that is faulty you run the risk of losing information and causing damage to your notebook. A faulty notebook AC adapter can also cause damage to your notebook. A frayed ac adapter cord is dangerous and can start a fire. A notebook battery will have to be replaced over time because it will not be able to be re-charged.