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Old 06-04-2013, 10:20 PM   #1
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How can I pwr my TV w/o Gen & outside service

I have a 1998 Forest River Georgetown Motorhome.

How can I power a 21" LCD & dvd player without using the Generator while driving down the road.

Thanks in advance!!!!!!!
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Old 06-04-2013, 10:26 PM   #2
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I have a 1998 Forest River Georgetown Motorhome.

How can I power a 21" LCD & dvd player without using the Generator while driving down the road.

Thanks in advance!!!!!!!
You need to understand the power draw on the two components and buy an inverter that will supply that; often expressed in watts. The inverter will connect to your vehicles 12 v battery and supply 120v for the LCD and DVD player.
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Old 06-04-2013, 10:28 PM   #3
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You can buy 12v TV & DVD player, or you can buy and install an Inverter to give you 120v AC from your 12v battery. The first step is to determine the total wattage for the two units you want to power. That will tell you how big an Inverter you need.
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Old 06-04-2013, 10:35 PM   #4
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Thank you for your help. Ok, 2 questions.

1, A 12v TV/DVD. I still will need to run the GEN if I'm driving??? yes or no.

2, If using an Inverter is it plug-n-play? If not, how is it hooked up and what Battery source, Engine has 1 the Coach has 2.

Thanks!
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Old 06-04-2013, 10:41 PM   #5
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Thank you for your help. Ok, 2 questions.

1, A 12v TV/DVD. I still will need to run the GEN if I'm driving??? yes or no.

2, If using an Inverter is it plug-n-play? If not, how is it hooked up and what Battery source, Engine has 1 the Coach has 2.

Thanks!
No, you wouldn't need to run the Gen for 12v devices. It would be like plugging in your phone into a car to charge it.

Whether its "plug-n-play"'or not depends on how big it has to be. A small one is, a larger one would have to be wired to whichever battery you want it wired to.
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Old 06-04-2013, 11:28 PM   #6
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Thank you for your answer.
I see that the 12v combo units are a little too much for me.

How do you install an inverter. Is it just 2 wires to the Batt or do I also have to tap into the Alternator. I'm pretty confussed about the wiring process?????????
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Old 06-05-2013, 08:25 AM   #7
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You either plug it in to the 12v accessory (eg, "lighter") plug if its ~300 watt or less, or you wire it directly to the battery. No alternator connection.
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Old 06-05-2013, 08:29 AM   #8
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Which battery to use, the engine or chassis
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Old 06-05-2013, 08:39 AM   #9
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Often forgotten is that to create watts to power a 120 volt item, requires at least that many watts as draw from the battery.

If you have a 300 watt inverter (the minimum to run a small TV and DVD player) you need 300 watts of AC power. (Or about 2.5 amps of AC).

To create that 300 watts of AC you need to suck 300 watts of DC out of your battery.

300 watts of DC @12 volts requires 300/12 or 25 amps of battery draw.

This is WAY more than most "Accessory outlets" are rated for (even though they ship with cigarette lighter adaptors).

Fusing and direct wiring with properly sized wires and locating the inverter as close to the battery as possible is mandatory. Run an extension cord or ROMEX w/ Outlet to the location of use.

Folks who use inverters typically wind up adding additional batteries to extend their dry camping experience due to the high battery usage.
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Old 06-05-2013, 08:41 AM   #10
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Which battery to use, the engine or chassis
You must use your house or storage battery (NEVER your starting battery).
You will not be able to start your MH after an hour of TV.
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