Solar charge controller selection help needed
I am looking to put in a solar system that will produce about 30 amps per day. I choose a semi-flexible 135 watt panel made by Sunpower which meets my capacity needs. My only problem is choosing t...
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What you'll get with this controller is normally called "adjustable setpoints". All MPPT have this feature. I wouldn't know what the heck "to program the charge profile" is :). Adjustable setpoints are important, to help your AGM last longer. Though 99% SOC is more important yet.
Now, with adding more panels - in future - in order to calculate the wire gauge, you should know the total wattage, voltage and current from the panels. I would use maximum parameters that this controller is designed for, i.e. 520W. Off the top of my head (and other heads here that have 500-700W array), a 10 gauge cable from panels to controller should be enough. In most RVs this length is waay more than 5ft, but #10 gauge will be alright up to 15-20ft.
To use MC4 connectors you will need to buy a double length of MC4 cable, obviously.
Now, with adding more panels - in future - in order to calculate the wire gauge, you should know the total wattage, voltage and current from the panels. I would use maximum parameters that this controller is designed for, i.e. 520W. Off the top of my head (and other heads here that have 500-700W array), a 10 gauge cable from panels to controller should be enough. In most RVs this length is waay more than 5ft, but #10 gauge will be alright up to 15-20ft.
To use MC4 connectors you will need to buy a double length of MC4 cable, obviously.
