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Old 02-11-2011, 12:58 AM   #1
rollie41
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Power draw

I am trying to calculate inverter size. can't find power draw for Directtv DVR or Olevia TV in 2008 3400lR anyone help?
 
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Old 02-11-2011, 02:40 AM   #2
7.3Ford
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Should be on the back of the TV and the DVR. I would think around 2 Amps since that is what My setup uses based on EMS monitor panel. 110 Volts X 2 Amps = 220 Wats. Draw on the battery will be about 22 Amps.

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Old 02-11-2011, 03:58 AM   #3
camper4
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Agree with 7.3's calculations rough calculation for battery current draw.
I put an Amp Probe on my circuit and found the TV to draw 1 amp and the satellite box drew less than .1 amps. I did not check the DVR. The TV said it would draw 170 watts max. That is more than the 1 amp I measured so I figure that the 170 watt rating is for start up only.

If you can, I would recommend using an Amp Probe to actually measure the current draw, I was able to get the wire in the circuit breaker box to get my measurements. Then consider getting an inverter 50% larger than you need.

Good luck. And as always be careful with the AC.
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Old 02-11-2011, 05:56 AM   #4
rollie41
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Thanks for the help. Rollie
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