Solar Panel Battery Trickle Charger
Solar Panel / Array Hook-up Question?
If I have a load is 12V DC and consumes 40 watts, the type of solar charger / power array that will work for this? Be the panel (s) must be enormous surface area to cover with 40 watts? Would there be a way to minimize the area of solar panel in the cargo area maintenance of a 12-volt battery and use it as the power supply?
It depends on the load, which are carefully mentioned. If it is a constant load of 40 watts, then you need a solar panel from 80 to 120 watts, depending on your location and how much sun it receives. With a large battery to power when the sun is out. If the load average is only 4 watts, ie the load of 40 watts is only 10% of the time, then only have to plan all 4 watts which means a wide 10-15 watt solar battery and a smaller one. A series of 40 watts is about 5 square meters. So you have to provide more information before you can get a good response. .
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