In relation to this question: Solar power wattage requirement
I'm trying to get to the math of understanding my wattage for my plan solar-setup. I would like anyone here who knew can correct me on my computation.
My main goal for my solar-setup is not much about concerning the type of devices I can plug, but more on the capacity and efficiency.
1 80W solar panel as seen in the specs here
and for storage a 12v 40AH deep cycle battery
I will be using a battery controller for this, but for the sake of this question, let's leave it out of the equation for now (Or not if it's relevant)
From my reading in the internet, a 12V40AH battery will yeild me a wattage of 480Watts. But given the these kinds of batteries to last longer, the consumption should not go below 40%, so my usage capacity should not exceed 240Watts, am I right?
Battery Capacity: (voltage) * (AH) = total capcity * 0.6 = usage capacity
My next math is how long it needs to charge. Let's assume that I get 6 hours of direct sunlight (equator). I get the advertised, 4.44Amp current from the sun. So if I need to fill the battery for the first time, a 4.44Amp * 6 will give me 26.64AH of current on that time. It will take me 12 Hours of direct Sun in order to fully charge my battery.
Charging capacity: Solar Current * Hours of Sunlight = Total Current Produced
Lastly, I also want to compute to the power consumption of a device I would like to connect it to. In this example, I have a router that is drawing 6 watts and it's open for 24 hours a day. If I'm going to plug it on batteries, I would like to know if my current setup can take this.
Total Power Consumed: 6W router * 24 hours = 144W
Since I have an operating capacity of 240 watts, I could power my router in a battery for a shy of 2 days. Am I getting this correct?