

| Subject: | Re: Vitrifrigo temp data |
| From: | David Beierl |
| Date: | Sun, 7 Jul 2013 17:14:34 -0400 |
At 04:37 PM 7/7/2013, Troy wrote: >I'm not sure if anyone else has plotted the electrical usage, but on >my "watts up" meter it appears I've used almost 20 amp hours in 21 >hrs, so about one amp per hr, which I thought was actually pretty >amazing. This is the first Just being pedantic here...that's one *amp-hour *per hour, or an average of one amp consumption. Amperes is a rate of charge transfer (coulombs per second), ampere hours is an amount of charge (one amp hour would be 3600 coulombs, or the amount of charge in about 240 average-size lightning bolts (or ten really humongous ones)). To get the most accurate picture of consumption you have to go one step farther and look at watt-hours, if your meter will do that. An amp-hour at ten volts has ten times the energy of an amp-hour at one volt; watt-hours takes voltage into account and gives energy directly. Yours, David
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