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Old 01-03-2009, 01:18 PM
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nypete is on a distinguished road
Default Question for you from newbie.
I'am currently running a Cobra29 barefoot in my big truck at work and am thinking about upgrading my radio.I'am using the 12v power points in the roof how many watts can I pull from 12v?
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Old 01-03-2009, 06:00 PM
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Default a quick way to figure this...
is to use ohms law if you have 12 volts running through a .8 ohm wire with a 15 amp fuse that would be a 180 watts
heres the the link for the ohms law calculator.Ohms Law Calculator
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Old 01-03-2009, 06:04 PM
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Default hers the formula in writing
Voltage (E) = Current (I) * Resistance (R)
Power (watts) = Current Squared (I^2) * Resistance (R)
Power = I*E = E^2 / R if you know two of the factors such as the volts and amps you can figure out the watts
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Old 01-06-2009, 01:00 PM
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mudder is just really nicemudder is just really nicemudder is just really nicemudder is just really nicemudder is just really nice
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just about any stock barefoot radio will "run" off the OEM power points, use a quailty plug

great post bulktanker
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Old 01-06-2009, 09:48 PM
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thanks happy to help
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Old 01-08-2009, 02:56 AM
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I've run a 100 watt kicker and radio no problem b4
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