Watt Hrs vs Amp Hrs
This article helps explain these ratings and raises a question wrt battery charging older vs newer LFPs too. Not sure if this also applies to other battery types or if it matters with any when you me...
Forum Discussion
BFL13,
My watt meter (120 volt) does show instantaneous load and can count watt-hours as well.
I prefer watts because when there is voltage sag--it still shows me the amount of energy I'm consuming.
That's how I found out that the roof air, on a hot day, after running continuously for several hours, draws up to 1920 watts.
That caused me to abandon my idea of running the air conditioner from solar. I simply don't have room for that many panels on the roof--and I'm at 102 inches in width--so I can't "do" awnings made from solar panels.
I could have done a double layer rack with actuators....but the cost prevents that.
My watt meter (120 volt) does show instantaneous load and can count watt-hours as well.
I prefer watts because when there is voltage sag--it still shows me the amount of energy I'm consuming.
That's how I found out that the roof air, on a hot day, after running continuously for several hours, draws up to 1920 watts.
That caused me to abandon my idea of running the air conditioner from solar. I simply don't have room for that many panels on the roof--and I'm at 102 inches in width--so I can't "do" awnings made from solar panels.
I could have done a double layer rack with actuators....but the cost prevents that.
