Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

camper4 · 02-11-2011, 03:58 AM

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.

02-11-2011, 03:58 AM	#3
camper4 Montana Master Join Date: Dec 2006 Location: corning Posts: 694 M.O.C. #6635	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.