I have an Olympus e510 that I bought new 2 years ago. The other day I got it out to use it and it will not turn on. I purchased a new battery, charged it, and it still will not work. When I removed the battery from the charger the light on the charger was green. I decided after the camera would not turn on I put the battery back on the charger. At that time the charger was showing a red light. Could the charger be going bad?

Hi, as per your information your camera 2 years old but not used much. You buy a new battery 1st time when you charged you see the gree light. But camera not working. When you try to charge the battery again you seen the red light. Its mean your charger have a problem. So what you do now? Ok try these.
Remove the power connection of the charger. then fixed the battery there slowly & properly. After that plug on the charger again. If the same thing happens then unplug the charger & plug in in different point. Then see what showing. If again red light then wait 1 hours and waiting for green signal. If there is no green signal showing then visit a service center with your charger. Tell them your problem. They will fixed the charger for you. Don't worry your camera is ok.
Your new battery or your charger one of then damaged. Thanks & waiting for your feedback.