VA Tester and our Giant Star

Once upon a time on a bright and sunny afternoon, I decided to interact with some photons from that big burst of energy we revolve around. I had ordered a 6V 3.5W solar panel from Amazon awhile back but I never got around to trying it. I also had an Adafruit Solar LiPo Charger that I hadn't used.  Part of this is research of using solar with home automation nodes that are near a window. Currently, I use AA batteries but I see them as wasteful since eventually you have to replace them. Of course you can get rechargeable AA batteries but they usually put out a tad less voltage, 1.2V vs 1.5V and still uses energy from an outlet to recharge. (Hmm...you could recharge them from solar?) This setup using off the shelf parts is a bit more pricey but in theory could last indefinitely on the same set of batteries. The Adafruit charger is where the magic happens. It takes care of load sharing with a 1S LiPo battery when there isn't enough Sun and it will charge when there is enough Sun. Ideally in the end, I would design a node that incorporates this circuit but it's really only needed for window nodes.  I could create two types of nodes - one for solar and one without, or an easy add-on board to solar enable a node, hmm...