Tell me about Inverters please. - Page 2 - Fiberglass RV


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Old 02-19-2012, 08:52 AM   #15
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It is important to emphasize that the inverter should be installed as close as possible to the battery. When in the surge mode, this inverter can pull over 100 amps - you could literally weld steel with that much current.

Don't skimp on wire gauge. You can buy heavy cable and ends at a welding supply or if you are thrifty like me, buy new, but discarded cable from a metal recycling yard by the pound. Fuses and fuse holders are available on eBay. They are used for high output boom box set ups in cars. Harbor Freight has a high capacity switch relatively cheaply. Heavy Duty Battery Cutoff Switch

20% off coupons here: Digital Savings
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Old 02-19-2012, 01:26 PM   #16
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Good info here.. Thanks everyone, I am going down a parallel path right now as well and a bit confused with all of the options.
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Old 02-20-2012, 10:17 AM   #17
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Originally Posted by Jon Vermilye View Post
There are lots of different approaches. I also installed a 1000 watt inverter, a Qantrex Prowatt SW 1000 watt pure sine wave inverter. I followed their instructions (a PDF is available on line) & ran #0 Boat Cable (a high quality cable available from Genuine Dealz. They will sell parts or, for a reasonable price, well made cables at what ever length , color & ends you need.

I also included a 200 amp disconnect switch & a 150 amp fuse.

The advantage of going to an oversized cable is less voltage drop under load. Since the inverter has a low battery cutoff, wiring too small will drop enough voltage that the inverter will shut down before the batteries are actually at the cutoff voltage.
Thanks to you Jon and the others that are supplying all this useful info. As Earl said....to us newbys it can all be a little daunting. Would you mind posting a list and links to the Cables, fuse box, fuse, etc you purchased so I can compare that to the complete kit Ken suggested. Thanks
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Old 02-20-2012, 10:47 AM   #18
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Originally Posted by Don Dunsmore View Post
Thanks to you Jon and the others that are supplying all this useful info. As Earl said....to us newbys it can all be a little daunting. Would you mind posting a list and links to the Cables, fuse box, fuse, etc you purchased so I can compare that to the complete kit Ken suggested. Thanks
The cables were made to order by Genuine Dealz. I used their Boat Battery Cable, Expensive, but very good quality. I specified length, color & the size lugs (if needed) for the ends. The fuse & holder manufactured by Tusnami came from a local car audio store, although I linked an Amazon source. It was a bit of a pain to assemble since the lugs that are used to connect both the cable & the fuse itself are not permanently attached to the plastic case & getting the cover back on after connecting everything took some doing. Still, the others I looked at were either just as difficult to use or were not very water resistant. Since I mounted mine on the rear bumper (where the Escape 17b 6 volt batteries are located) this was the one I used. The switch was from Performance Plus.

The inverter is located in the underseat compartment behind the converter, & I mounted the remote near the sink. . Rather than attempting to tie the inverter into the existing AC system, I added a receptacle near the sink that is a stand alone inverter outlet.

Hope this helps!
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Old 02-23-2012, 07:52 AM   #19
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we are thinking about just using a laptop with a tv tuner progythingy,(technical jargon us fogies use) it can recharge from 12 volts, plays dvd's.
remember that things like you cell phone can recharge in your tow vehicle when you go on a beer,,,,uh,,,i mean grocery run.
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Old 02-23-2012, 09:00 AM   #20
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Inverters

We carry two inverters, a 1200 watt non-sine wave, $59 Black and Decker Inverter located within 2-3 feet of the battery and two 100 watt cigarette lighter inverters.

I switch our water heater and fridge to propane before turning on the 1200 watt inverter. As well I unplug the Converter. We typically use the 1200 watter to run our coffee pot in the morning and just about anything else. I should mention we do not have a micro wave though I expect it could run a 600 watt microwave for minutes like it does the coffee pot.

When I want to run only the TV, I use a 100 watt cigarette lighter inverter. We carry two of these, one in the car and one in the trailer. Again these are non-sine wave inverters. We have three 12 volt outlets in our trailers. A 100 watt inverter is more than enough power to run our TV and Satellite receiver.

As well we frequently use a 100 watt Inverter to charge our cell phones while driving and to charge our computers.

We bought our 100 watt inverters, also Black and Decker, for $20 at Walmarts.

I will say a full sine wave inverter is the best you can buy however we have never had a problem with the much less expensive non-sine wave inverters and have never had any TV interference from using a non-sine wave inverter.

Certainly if a 12 volt TV or a 12 volt electric blanket are near the same price as a 110VAC unit 12 volts is the way to go, though this is not usually the case.
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Old 02-24-2012, 01:32 PM   #21
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Inverter Warning

Warning

One of our talented members let me know that there are dangers the way I use my 1200 watt Inverter. Please pay heed to this warning.

The way I plug my 1200 watt Inverter into my trailer's electrical system is dangerous for a casual user.

First I use a cord with two male ends on it to connect the output of my Inverter to an outlet on my AC electrical system. Via this process I feed AC to all electrical outlets in the trailer back thru the electrical box. This includes sending power to the trailer's power cord.

If the Inverter is turned on the male ends of the plug from the Inverter would be electrically hot, have 110VAC on it. If you touched them you would get a shock, possibly severe.

Second since I am feeding AC thru my breaker box, AC would feed all the way to my 30 amp cord that normally would be plugged into a pole service outlet. That means the trailer's power cord, the mail end would also be hot. Another significant danger.

I deal with both of these issues but it's too easy for the casual user to make a mistake.

As well you should never have the out put of the Inverter plugged into your system if you are going to have the Inverter plugged in.. This will definitely cause the Inverter to fail.

My approach works but it does take careful consideration of one's actions. I do not recommend my approach of connecting my Inverter to the electrical system. As a result I have modified the previous post.
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Old 02-24-2012, 01:35 PM   #22
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A lot of generator users wind up with the same issue. As the owner/prime user, it is incumbent on you not to "zot yourself" but the risk is very high for others, especially curious kidlets in the area, etc

In your case, I'd suggest a 15 amp -to-30 amp plug adapter to allow you to plug your 30 amp main cord into the adapter, which then plugs into the inverter
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Old 02-24-2012, 01:36 PM   #23
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..........
First I use a cord with two male ends on it ...........
Good caution. Some people use the double male ended cords to power their house temporarily from a generator. Also unsafe.
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Old 02-24-2012, 02:03 PM   #24
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Originally Posted by honda03842 View Post
Warning

One of our talented members let me know that there are dangers the way I use my 1200 watt Inverter. Please pay heed to this warning.

The way I plug my 1200 watt Inverter into my trailer's electrical system is dangerous for a casual user.

First I use a cord with two male ends on it to connect the output of my Inverter to an outlet on my AC electrical system. Via this process I feed AC to all electrical outlets in the trailer back thru the electrical box. This includes sending power to the trailer's power cord.

If the Inverter is turned on the male ends of the plug from the Inverter would be electrically hot, have 110VAC on it. If you touched them you would get a shock, possibly severe.

Second since I am feeding AC thru my breaker box, AC would feed all the way to my 30 amp cord that normally would be plugged into a pole service outlet. That means the trailer's power cord, the mail end would also be hot. Another significant danger.

I deal with both of these issues but it's too easy for the casual user to make a mistake.

As well you should never have the out put of the Inverter plugged into your system if you are going to have the Inverter plugged in.. This will definitely cause the Inverter to fail.

My approach works but it does take careful consideration of one's actions. I do not recommend my approach of connecting my Inverter to the electrical system. As a result I have modified the previous post.
To avoid these, as you admit, dangerous problems, why not mount a 30 amp receptacle on the outside of the trailer fed by the inverter & simply plug the trailer shore power cord into it? Of course you would still have to shut off the breaker (or unplug) the converter, but this would be a far safer solution to powering the entire trailer.
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Old 02-24-2012, 02:09 PM   #25
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Originally Posted by Jon Vermilye View Post
To avoid these, as you admit, dangerous problems, why not mount a 30 amp receptacle on the outside of the trailer fed by the inverter & simply plug the trailer shore power cord into it? Of course you would still have to shut off the breaker (or unplug) the converter, but this would be a far safer solution to powering the entire trailer.

Egg zakly!
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Old 02-24-2012, 03:00 PM   #26
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I'll probably add an Inverter outlet to the trailer and plug the trailer's power cord in. Thanks
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Old 02-24-2012, 04:20 PM   #27
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Inverter Cable

I use 1/0 and 3/0 welding cable I bought at a welding supply shop . The cable is extremely flexible and has a tough rubber coating . You can usually buy the cable by the foot and they often have short lengths for sale cheap
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Old 02-25-2012, 04:52 AM   #28
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I use 1/0 and 3/0 welding cable I bought at a welding supply shop . The cable is extremely flexible and has a tough rubber coating . You can usually buy the cable by the foot and they often have short lengths for sale cheap
Wow, what kind of amperage and how long a run are you dealing with to need that size wire? Raz
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