Based on Mark35mmF2's analysis, It sounds like you need a new battery charger. All batteries do eventually wear out. After getting the new charger, your newest battery should provide the best performance (longevity), etc. You can assess the others once you know your charger is known ...
Connected to the electric charger the light is green, the light will turn yellow when you place the battery. The light will turn green when the battery is fully charged, it can automatically power off to prevent over-charging the battery, extending battery life. ...