Candy,
Hello. It is very possible that the battery in your laptop computer is at the end of its life. It will consume power yet not be able to keep your laptop running. If that is the problem, the solution is just to buy a new battery.
Unfortunately, the industrious a whole is having difficulty adjusting to the use of lithium ion batteries. It seems that it's very difficult to get these batteries to last an indefinite period of time. These batteries also are very sensitive to heat, even more sensitive than other components of the computer.
It should be possible to remove the battery from your laptop and then plug it into the electric outlet and run it directly without the need for the battery in place. I don't have your instruction manual in hand, but I think that is a standard procedure for most laptop computers. In fact, leaving the battery in the laptop for long periods of time and running it off of AC power is not really good for the battery itself.
Anyway, removing the battery may be your best choice at this point. If your laptop will work without the battery in place, you might consider buying a new battery at some time in the future. Of course, without the battery any time you have a power outage whatever you're working on at the time gets lost. That is one of the reasons people like laptop computers is because if the power should accidentally go off the computer will keep running. Unfortunately, the lithium ion batteries are rather expensive to maintain. These type of batteries seldom, if ever, last as long as the laptop would.
That's the best I can do. Perhaps others here have some better ideas.