I am about to purchase the AC300 system (when a good sale occurs). But how I plan on using it will vary based on how the AC300 controllers distribute power from the Solar Panels TO the batteries AND distribution to other items drawing power. I’ll try to keep it simple by using examples.
(Prefer Only using Panels and not connected with the AC input).
If my panels are suppling 2000 watts/hour and I have 200 watts/hr draw from the AC Port(s) at all times. I am assuming that 1800 watts would be directed to charge the batteries and 200 watts would be used to power the connected devices. Am I correct?
Does 2000 watts go to charge the batteries and the connected devices drawing 200 watts/hr pull the power directly from the batteries? I would like to prevent the batteries from being used at all in that situation.
The Panels in the above situation are only supplying 1000 watts/hr, and there is a power draw of 1000 watts/hr. Does the AC300 distribute all 1000 watts of the Solar Power to provide power to the connected devices and NONE to the batteries OR does the AC300 controller(s) split the distribution of 500 watts to the 1000 watt power draw and 500 watts to the connected batteries and the other needed 500 watts is pulled from the batteries. I know it would not make sense that the latter would occur, I just want to be sure, in case I connect to the AC grid power. I wouldn’t want the AC grid to kick in until the Power draw > than the power supplied by the solar Panels or if the battery power < a certain percentage.
Also, I understand there are many settings that you can control some of it, such as, only use AC Grid power if Battery charge < a certain %.
I would like to find a happy medium to use as much power draw using solar panels AND charge the batteries to capacity each day without using AC grid power, at all. How the solar power is distributed may determine the total batteries for me to purchase (planning 3), also.
I will be using 3 x 450 watt panels per leg of Solar Input which would probably give me a good 2200 watts+ for a large percentage of the day (5-8 hours).
If anyone knows more details of Solar power distribution of the AC300’s controllers, that would be helpful.