Lower the brightness of the screen; close programs when you don't need them; turn off WiFi and Bluetooth (if you have Bluetooth) when you don't need it; check for any battery using programs.
It is not likely that your laptop is not turning on because of the screen. It is suggested that you take your laptop to the nearby repair center and explain...
If the battery was working well when disconnected, then either its connections are dirty or a cable is about to break off. I mention the cable because disconnecting often can...
You could have a faulty AC adapter or plug. If the problem is the AC adapter, you'll need to replace the charging cord that came with your computer. If the...
Sounds like either your battery isn't charged, is dead, or not inside your laptop. For Windows: when your laptop is on, you'll see a battery icon in the tray. It'll...