Romy the Cat wrote:

Bill, I do not think that what you describing is contribution of solar power. The actionable factors in your playback is new regenerator and new battery.

The PurePower performance with discharged battery is not well understood. We do understand what happened with the unit on electrical level but how it manifests itself sonically nobody knows. My unit has absolutely dead battery for a few years. I do not have luxury to have a unit with battery and unit without it, so I cannot be certain. I contacted Richard from purepower and he was very thoughtful to provide number of options how batteries might be replaced. My personal feeling that his discharge battery the quality of electricity the unit produced is reduced, but since this frag was boiling for a long time, I do not see it as a problem. 

Bill, if you feel that your generator from your solar panel does wonderful job that I would strongly encourage you to drive any another digitally generate in power devices out of your system. Those units return obscene amount of digital noise to the ground and grounds of your multiple digital devices will be talking to each other in very negative way.  Unfortunately, you cannot lift grounds for your your regenerators. So what basically you need to do is decide which regenerator produce better quality from your solar system or purepower. Since your purepower is compromised with the battery you might wait when I refresh my batteries for my purepower and then you can borrow it from me and try.