Portable (suitcase) solar "install" question
I've gone back and forth on solar panels on the roof or portable. Well, due to a tight budget, portable is the only way I'm going to get solar for now and it makes sense for me to try it out 1st as we...
Forum Discussion
mike-s wrote:johnm1 wrote:Moving the CC won't change the efficiency one bit. Whether the voltage drop occurs in the wiring before or after the controller makes no difference.
If I need to move the CC for efficiency and since it's not waterproof, should I replace it with something better?
The only reason to move a PWM CC closer to the battery is if it supports temperature compensation and that will keep it from being at a significantly different temperature than the battery.
Not the only reason.
The main reason to still keep the controller close to the battery is so the voltage drop between battery and controller does not mess up the controller set points.
The high set point will never be reached with voltage drop, because the controller will "see" the battery voltage as being higher than it really is, so that can leave the battery undercharged.
