Agreed Steve, love the no monthly power bills too. The PV field does seem every bit as deep and evolving as the PC world. Also, thanks for passing along DT's 24 VDC panel tip, very helpful in my future solar panel expansion plans .... assuming I can continue to use my existing, series...
Make sure your load is connected directly to the battery. When the load is applied, take a voltage reading at the battery and see what the voltage reads.The minimum you should read is 11.6 volts under no load condition. Also, make sure you take a voltage reading at the inverter. Note: For best...
and https://www.sciencealert.com/how-graphene-could-help-solar-panels-produce-energy-when-it-s-raining and https://beebom.com/graphene-battery-vs-lithium-ion-battery/
Yes they still charge when it's well below zero farenheit. They batteries are out of the wind in a non heated enclosure and insulated to an extent with cardboard. The batteries have never been deeply discharged and left that way in freezing weather and doing so would cause the water to freeze...
It's never too late! Use up what you got and carefully upgrade with compatible, improved technology. ~ How do you keep your water system from freezing in winter,?