My ASUS A551L Laptop that I have had for about 3 years has recently started blinking orange at the battery light every second (it goes green, orange, green, orange etc.). It's a laptop where you can't take the battery out without screwing screws off. I have the power cable in constantly and there is electricity going through the cable always. When I take the cable out it keeps blinking. I usually put my laptop in slumber mode at night, and occasionally restart the system sometimes also. I only use the laptop for browsing the internet on different social media sites. It doesn't feel overheated. When I hold my cursor over the battery icon in the left bottom corner, it says: "95% left (plugged in, not charging)". I'm on Windows 10. I don't think I have any warranty or insurance to get it fixed anywhere.
Should I be worried? Do I have a problem that needs fixing? What can I do?