Connecting solar panels to Converter
Is it possible to connect the output from my charge controller to converter instead of direct to the batteries? I have the PD 9100 series that has two sets of pos and neg terminals on it.
Forum Discussion
The wires from converter to battery (via DC dist panel) can easily handle the solar amps, where say it is a 55amp converter and solar can do max 15 amps. But there is still the voltage drop issue for the solar controller.
If the controller "sees" 14.4v when the batteries are only at 14.3, and the controller's set point to start controlling is 14.4, then the batteries will only ever get to 14.3.
You can beat that by either reducing the voltage drop with a wiring change, or just crank up the controller's set point to 14.5.
Changing the set point leaves a possible issue that the battery still won't get to 14.4 if it takes too long to get up that last 0.1v that day before dark, but that is just in theory. In real life once the batteries are up into the 14s voltage rises fast.
If the controller "sees" 14.4v when the batteries are only at 14.3, and the controller's set point to start controlling is 14.4, then the batteries will only ever get to 14.3.
You can beat that by either reducing the voltage drop with a wiring change, or just crank up the controller's set point to 14.5.
Changing the set point leaves a possible issue that the battery still won't get to 14.4 if it takes too long to get up that last 0.1v that day before dark, but that is just in theory. In real life once the batteries are up into the 14s voltage rises fast.
