Opening the laptop and changing the battery is not a big deal, if you want, you can open your entire laptop and close it back and put the battery in it with your mind and do anything extra. If you laptop has a user-serviceable battery, that is, one that you can remove yourself, you can replace your battery fairly easily. If your laptop does not have a user-serviceable battery, you will need to contact the laptop's manufacturer so they can open your laptop and replace its battery for you.
This is one of the best suggestions that, if we know about any thing very well, then we are capable of doing it but if we do not know, then at that time we lose the life of this object which is in front of our eyes. Took forever goes away.