I am trying to figure out how long a battery will last. I have Googled it and read a few sites but I still have a few questions. I have a small TV that I plugged into my Kill a Watt meter. That sho...
The A.C. watts vs DC V.A. only works when POWER FACTOR does not enter the scene. Then trying to factor V.A. into ampere hours is another miscue. And yes it all matters and not to a minor degree. Try a 15 to 20% error maximum with an inductive load. This is why I had to extrapolate to watt hours when testing batteries.
Allow for 30% maximum error when trying to make calculations. Favor the battery as -30% can kill it off like a cockroach.
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