Solar voltage drop calculations, new question
Using a calculator: I like this one When figuring wire size from panels to controller for "12v" panels in parallel and PWM controller, we should use 20v as our input, right??? I see writeups wher...
Forum Discussion
Let's revisit this.
If the panels CAN put out 22v, but are drawn down to 13 during charging, is the voltage drop really based on 13v???
Let's say a voltage drop calculation for 13v for a particular setup shows a drop of 0.5v. Well, the actual voltage at the controller input is still going to be 13, not 12.5, right? Or not? I'm not wording it well, but I hope you get what I'm asking. Put another way, if the battery is accepting 13v and X amps, it's not like it will drop to 12.5 due to the supposed voltage drop. ??
If the panels CAN put out 22v, but are drawn down to 13 during charging, is the voltage drop really based on 13v???
Let's say a voltage drop calculation for 13v for a particular setup shows a drop of 0.5v. Well, the actual voltage at the controller input is still going to be 13, not 12.5, right? Or not? I'm not wording it well, but I hope you get what I'm asking. Put another way, if the battery is accepting 13v and X amps, it's not like it will drop to 12.5 due to the supposed voltage drop. ??
