When laptops were first designed and marketed, it was thought that they would not be as popular as desktop computers because of the limitations in performance caused by having everything miniaturized. However, this has proved to be not the case, as laptops are very popular and many people have switched from desktop to laptop for both personal and business use.
laptops rely totally on power from the mains supply so there is no need for any other power source. Of course, with laptops, the main feature is portability, so laptop chargers are an important part of the package. Most people using laptops don’t have the time to know much about how it works but have a rough idea how long their battery will last between charges, and this varies between makes and models, and depends on what the laptop is being used for. Using one of the larger models with many features will obviously drain the battery faster than one of the smaller laptops, but it is probably fair to say that you could expect anything between a couple of hours up to five or six hours, depending on these factors.
Here at w8pgw.org we can supply laptop adaptors to make sure that you have a laptop power supply available whether you are at home or work. As long as your adaptor is available, you can carry on using your laptop while the battery re-charges.