Solar Rv awning -- does it pencil out?
Great idea, but at ten thousand dollars for a thousand watts, I'm not sure it is worthwhile for me: Article
Forum Discussion
noteven,
Recommended charging rate for Li is 0.2 C Maximum may be listed as 0.5 C. Slower charging works well with LI--just stop at 90% state of charge. Li can be charged faster--but cycle life is impacted adversely. The big plus is not having to charge to 100%. Once a month it is good to take them to 100%, to reset the battery management system. Li has too many hoops to jump through for me. I've boondocked at -37 c (-34 f), which makes LI undesirable.
At 80% state of charge, lead acid self limits to 12.5 amps per 100 amp-hours. As a C rate that is 0.125, of course it goes down hill from there as it gets closer to 100%. But lead acid WANTS to be taken to 100% state of charge.
I prefer SiO2 to Li as they enjoy 100% but do not require it except once ever 30 cycles. Their recommended charging rate is 0.25 C
Recommended charging rate for Li is 0.2 C Maximum may be listed as 0.5 C. Slower charging works well with LI--just stop at 90% state of charge. Li can be charged faster--but cycle life is impacted adversely. The big plus is not having to charge to 100%. Once a month it is good to take them to 100%, to reset the battery management system. Li has too many hoops to jump through for me. I've boondocked at -37 c (-34 f), which makes LI undesirable.
At 80% state of charge, lead acid self limits to 12.5 amps per 100 amp-hours. As a C rate that is 0.125, of course it goes down hill from there as it gets closer to 100%. But lead acid WANTS to be taken to 100% state of charge.
I prefer SiO2 to Li as they enjoy 100% but do not require it except once ever 30 cycles. Their recommended charging rate is 0.25 C
