My Lenovo G50 laptop battery just stopped charging, I have to use it plugged is there anything I can do?

The laptop is about 15 months old. I know that this does happen, but over since I got the laptop, I was fairly responsible with the battery. I made sure that the battery was dead before recharging.

However I have been using the laptop extensively since I got it, almost on a daily basis.

Is there anything I can do?

I know I may have to buy another one. Does anyone know of a site where I can buy it and get it shipped to South Africa for a reasonable price if that is the only solution.

Yes you can get a new battery for less than $20 off eBay enter lenovo model # battery and order