Small solar set up for TT.
Got home with a used 2006 Nash 26X TT that I bought a little while ago. I want to put some solar on it, but not get carried away at this time. There's a chance I may not keep this trailer so I don't ...
Forum Discussion
allen8106 wrote:Come back when you learn electronics.
Remote volt/temp sense has nothing to do with getting maximum voltage into the batteries. Maximum voltage into the batteries (minimal voltage drop) is exactly why you want the controller as close to the batteries as possible. All remote sense and temp gets you is remote temp and sense, nothing else.
It's not "maximum voltage into the batteries," it's maximum current (which is a direct measure of the rate of charge - Coulomb flow). And, solar panels are current sources. A "12 V" panel will put out the same current (Isc) at up to about 15 V, which is conveniently but not coincidentally higher than charging voltage. If using a PWM controller, the voltage drop simply doesn't matter unless it results in a voltage less than the desired absorption charging voltage at the battery. And it simply doesn't matter if it occurs before or after the controller, the end result is exactly the same. Remote sensing is to insure the controller knows the proper (remote temperature) peak voltage needed, so it can regulate it (remote voltage).
And, if you want to argue that MPPT is different, I agree. It also has no real world benefit for the vast majority of RV systems.
