A few more questions about solar panels...
As you may recall...I had some issues with my solar panels/batteries a few weeks ago. https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/30348700.cfm I've since bought a new controller (beca...
Forum Discussion
CA Traveler wrote:
This may help. Solar panel cells are not batteries and are electrically diodes and hence the higher voltage panel cannot backfeed the lower panel. Hence no heating occurs in the lower voltage panel and blocking diodes are not needed. Most modern controller prevent the function of isolating the panels from controller and hence the battery is not discharged at night. Ie Blocking diodes are not needed.
Scroll down the the 4 parallel panel diagram with different amps and voltage for an example. https://solarpanelsvenue.com/mixing-solar-panels/
Interesting article, and it does clear up some of the confusion.
For instance, I have two 12V panels...not a 20.8 and a 22.6...they are both considered as 12V panels.
Also, this new charger has "multiple intelligent protections against reverse polarity, over charge, short-circuit, reverse current, overload, and over discharge, keeping your battery fully protected."
So indeed...diodes are likely not needed.
