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Old 12-09-2008, 05:59 PM   #15 (permalink)
FastPlastic
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Join Date: May 2008
Location: Ames, IA
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98 Cherokee - '98 Jeep Cherokee
90 day: 17.18 mpg (US)

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Quote:
Originally Posted by MetroMPG View Post
What would happen if you skipped the inverter and hooked the battery directly to the block heater element? I haven't done the calcs...
I don't know about others. But I just wanted to throw in that my magnet mount has a internal temp control(250F if I remember correctly). So I'm guessing that style probably wouldn't work with 12V.

If you just do the math of Volts x amps = watts.

200watts at 12V = 16.666amps
800watts at 12v = 66.666amps

I believe that's per hour correct? I'm a little rusty with the power calculations.
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