You don't really need to charge a new laptop. It comes precharged from the factory (at around 45% of the battery capacity) which is enough for you to just plug it in and start using it. you can leave it plugged in constantly. I assume that you are going to have your laptop plugged in almost 90% of the time anyways, so it's not necessary to fully charge the battery.

You can always remove the battery from the laptop and just use the external power supply when it's not charging and this will also help the battery life, but again this is not recommended for people that use their laptop in the home mostly and is only if you take it for work every day and use battery power for an extended period of time.

View the original article here