My laptop is fully charged and when I remove the charger it turns off. What's the solution?

[Yesno]

My laptop is 100% charged and when the charger is removed it turns off. I already changed the battery thrice. Also, it won't turn on without the charger plugged in. What should I do??

 

[clutchc]

Try a new battery. It sounds like that one cannot hold the charge.

 

[Yesno]

Try a new battery. It sounds like that one cannot hold the charge.

I changed it THRICE. It can hold charge but turns off without any warning right when I'm doing something.I could see a drop in its performance too. Also, few days ago I changed the power settings to "best performance". Does this have anything to do with the battery problem??

 

[belyaevceo]

How old is your battery?

 

[Yesno]

How old is your battery?

It's new