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Old 07-05-2014, 06:19 PM   #3
NN5I
Carl, nn5i
 
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Join Date: Sep 2011
Location: Tallahassee, FL
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Quote:
Originally Posted by N3LYT View Post
They are energy hogs but they do work. I had a bigger version and it would kill a battery in a day. Between the Pelitere junction and the fan they suck up some juice.
That's not too bad for a Peltier (not Pelitere) junction and a fan. A day is 24 hours, and most car batteries are rated anywhere from 80 to 100 ampere hours. Let's assume 120 aH to calculate with. A 120 aH battery will be pretty dead after 80 aH have been drawn. 80 aH in 24 hours is 3.333 amperes, which ain't much (a little less than two typical 12v lamps). So if it'll run a day on a 120 aH battery it seems to me it's not such a hog.
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