Newbie question about solar charging
Every time I think I have somewhat of an idea of what is going on, I seem to get completely puzzled again! We have 1 AGM battery in our trailer. While boondocking in full sun, our 100W solar panel...
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jornvango wrote:If the charger actually drew 3.2a, then it would be 32! The rule is that for any given 120vac amperage, the 12vdc amperage is 10 times that. Why? Because 12v is 1/10 of 120v, and watts must be conserved.
So it appears to me that the solar is providing 2.8 Amps while the laptop is taking 10.8 A? Or is it taking 3.2 A?
Your charger's output is about 20x11 or 220 watts. Assuming about the same power goes in to it, I'll let you figure out what the amperage would be coming from the battery. This is stuff any good RV electrician should know.
To make any sense of all these voltages and amps, you must convert it all to watts first.
