BB8 no charge

Hello, I had a BB 8 a few years ago and I was only able to use it 3 or 4 times because then I couldn’t load it anymore. I place it correctly on the base and it doesn’t turn on any lights, sometimes the blue light on the charging base turns on but it’s just quick turn on and off.
I don’t know what is really happening and I don’t have a solution
Thank you