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 > Your search for posts made by 'KD4UPL' found 295 matches.

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  Subject Author Date Posted Forum
RE: Tesla pick up in 4th quarter 2019

The biggest problem I see with this idea is that NO charging station I've ever seen was set up for a vehicle towing a trailer. They are usually at the head of a parking spot, often a small one. If you pulled up to any of the chargers I've seen your trailer would be blocking a travel lane or multiple other parking spots. If you tried to pull up to the charger broadside you would be blocking other parking spots and often other chargers that are lined up with the one your using. So, if towing with this catches on, they have to rebuild all the charging areas again. The last 4 vehicles I bought: Chevy dually, 2500 Suburban, Buick sedan, and Jeep Grand Cherokee didn't add up to $48,000. I'll pass.
KD4UPL 06/14/19 03:31pm Tow Vehicles
RE: Spend 400 bucks for dual alternators on new Ram build?

On a brand new truck that's likely $50,000 plus what's another $400? I'd get the duals for sure. Now, will it help charge your camper batteries? Not without significantly larger wire feeding them thru a separate Anderson style connector or one like used for tractor trailer lift gates. If you're going to be putting hundreds of AHs of battery in the camper/truck I would upgrade the wiring to match. For my use I typically have stereo amplifiers, amateur radios, inverters, etc. along with the RV. I will absolutely be getting dual alternators on my next new truck.
KD4UPL 06/13/19 03:12pm Tow Vehicles
RE: Triple digit heat! Generator won't run

Glad you got if fixed. Unless someone did some kind of crazy hack-job on your electrical work it should be no problem to have the shore cord plugged in with the generator running. The transfer switch keeps it isolated.
KD4UPL 06/13/19 03:07pm Class A Motorhomes
RE: Battery & Electricity Question

The microwave ran off of AC. If the MW drew 10 amps on 315' of #10 that's a 5.5% voltage drop. If there was exactly 120v at the outlet you would have had 113v at the RV. That should have been fine. I think your dead battery problem is unrelated to the long extension cord's use.
KD4UPL 06/13/19 03:02pm General RVing Issues
RE: Why 4.1 axle?

While I guess technically the 4.10 might hurt your MPG slightly I suspect it's hardly enough to even notice. If you're talking a GM truck I'm not sure you have a choice; I think gas automatically comes with 4.10. In any case, other than the possible MPG penalty every other aspect of towing a load should be better with the lower gears. I'd keep the 4.10, you never know when you might want a bigger trailer or decide to drive over the Rockies.
KD4UPL 06/13/19 02:56pm Tow Vehicles
RE: Series, then Parallel or Parallel then Series?

I always looked at it this way. Two 6v batteries is series may give a you more power but if one battery dies while you are out in the boonies, you are out of power. But if you are using 2-12v batteries in parallel and one dies, you can keep going, you just need to run your generator more often. Dusty I'm not trying to pick a fight, I'm genuinely curious about this view I've heard from others. The way I see it, if you have 2 12v in parallel and one dies (which I guess you mean develops a shorted cell) the bad battery will be 2v lower than the good battery. This will cause the good battery to try and charge the bad battery which will kill it in the process. I've often wondered if people operating with this theory periodically disconnect their parallel sets of batteries to test them individually to make sure one isn't shorted. The thing is, I don't know how long it would take for the shorted battery to take out the good one but I'm thinking not very long at all, maybe a matter of a few hours?
KD4UPL 06/10/19 07:55pm Tech Issues
RE: Battery Questions

You say you checked the charge level using your charger? How does that work? Have you checked the battery's resting voltage? If it's 12.6 or 12.7 it should be fine. In my opinion Optima batteries are overpriced for what they are. I've installed hundreds of Deka batteries over the years along with lots of Rolls and Lifeline. I've had very good results form all of them. You have just one battery but use it to power an inverter running a coffee maker? That is very hard on that battery. If you have a 1,200 watt coffee maker I would think you would want at least 600 AH of battery hooked to the inverter. My battery charger has a gauge that indicates the battery strength when connected. It has a 12 volt deep cycle setting to charge the RV battery. When fully charged it indicates the amount of charge ( I can't remember exactly what the numbers are). It is probably not real accurate but enough to let you know that when you hook up the battery the amount of charge in it. When I say making coffee we make two cups on a Kurig and that's it. We have only done this twice with this battery. I can turn the inverter off so it is not running all of the time just when I need it. You say that you have installed hundreds of batteries over the years. Are you in the business? If so what battery and size would you go with and why? My wife's Kuirg uses 1,425 watts AC. Pulling that thru an inverter will likely be about 140 amps. That is an enormous draw on a 100 AH battery. It's best to not draw above about a C/5 rate; that is the Capacity in AH divided by 5. So, for a 140 A draw you would want 700 Ah. It's not that you can't do it with less, it's just harder on the battery, the voltage sags more, etc. I'm an electrical contractor who specializes in solar systems, particularly off-grid homes and cabins. I would install 2 6v golf cart batteries in series rather than 1 or more 12v batteries. That will give you about 220 AH. If you want more I'd use 2 sets of 6v GC batteries for 440 AH.
KD4UPL 06/10/19 07:44pm Tech Issues
RE: Series, then Parallel or Parallel then Series?

It doesn't matter. Either way will work. The first way uses 1 less cable.
KD4UPL 06/10/19 03:59pm Tech Issues
RE: Diesel Fill up

If you have had a previous experience where the pump wouldn't fit your truck you must have the small opening. If that's the case you could not use the truck lanes. I would look into changing the fill neck on the truck. I would find it very un-handy to not be able to get diesel from big truck pumps. Both my Chevy diesels have had filler necks big enough to do it.
KD4UPL 06/10/19 03:56pm Fifth-Wheels
RE: Battery Questions

You say you checked the charge level using your charger? How does that work? Have you checked the battery's resting voltage? If it's 12.6 or 12.7 it should be fine. In my opinion Optima batteries are overpriced for what they are. I've installed hundreds of Deka batteries over the years along with lots of Rolls and Lifeline. I've had very good results form all of them. You have just one battery but use it to power an inverter running a coffee maker? That is very hard on that battery. If you have a 1,200 watt coffee maker I would think you would want at least 600 AH of battery hooked to the inverter.
KD4UPL 06/10/19 03:54pm Tech Issues
RE: Lance 945 tank capacities

What year? I might have a brochure.
KD4UPL 06/09/19 07:46am Truck Campers
RE: Solar Panel Mounting Advice Needed

It's highly likely that your trusses are wood or maybe aluminum. I don't know that I've ever heard of an RV having steel roof trusses. Your 14" x 14" vents are located between the trusses. That is the easiest way to find them. That's probably why the standard vent size is 14", it fits between trusses spaced at 16" on center. I've installed panels on several RV roofs, I've tried to get some screws into the trusses if possible but mostly they just land where they do. Add some 3M tape and Dicor sealant to that and I haven't had problems.
KD4UPL 06/09/19 07:44am Tech Issues
RE: XM Radio / NAV Antenna Question

I had an aftermarket sat antenna on my '05 Chevy mounted at the center of the hood at the back, just below the windshield. The TC interfered sometimes with it there, particularly when driving south. I moved the antenna to the very front driver's corner of the hood and that took care of it. I would think having one one the roof under a truck camper would be just about useless.
KD4UPL 06/09/19 07:36am Truck Campers
RE: Can't get my entertainment center to work on Camp Cable

Most cable systems today have their own "digital box" and you don't even use the tuner in the TV. Didn't the campground give you a cable box?
KD4UPL 06/08/19 10:33am Class C Motorhomes
RE: Devil's Backbone Brewing Company

I've never been to the campground. Route 60 does have a lot of twists coming thru the mountains but tractor-trailers run it so I would think a MH would be okay. However, I would skip 29 and just stay on 501 all the way to Buena Vista. 501 isn't exactly straight either but it's a lot better than 60 in my opinion. Lexington is a nice, quaint, quiet little town. I live about 40 miles from there.
KD4UPL 06/06/19 07:33am Roads and Routes
RE: A home electrical question...

Is this a really old house, one that might have been wired in the 1940's or earlier?
KD4UPL 06/05/19 05:25pm Tech Issues
RE: What am I missing on GVWR??

What you're missing is what you've learned, basically nobody with a TC pays attention to the GVWR. My 11' TC sitting on a Chevy 3500 SRW weighed in at 11,140 pounds, the truck's GVWR was 9,900. I was not over axle or tire ratings and I put thousands of trouble free miles on the rig, some of them towing a boat. I then upgraded to a 2005 Chevy dually. The same camper put that truck at about 13,100 pounds, it's GVWR was 11,400. Again, I wasn't over the axle or tire ratings. I had the dually tagged for 14,000 pounds. The 11.5" AAM rear axle in a Chevy dually is actually rated by AAM at 10,200 pounds but in my truck GM only rated it at 8,550. Their rating was largely based on the weight rating of the factory tires. Upgrading the truck to 19.5" rims and tires would have gone a long way toward letting me use the entire 10,200 pound rating of the axle. Here's two interesting facts for people who think the GVWR is "gospel". My company bought a new Chevy 3500 SRW in 2015. They normally come with an 11,500 pound GVWR. Ours was ordered with the optional 10,000 pound rating so that numerous DOT regulations didn't apply to it. There was zero mechanical difference in the truck. If you run regular "passenger car" tags on a truck in VA they are only good for 7,500 pounds. A truck with a 10,000 pound GVWR that weighs 9,000 pounds is legally overweight if it has car tags. That same truck, if it has truck tags and is registered for 12,000 pounds is not legally overweight if it weighs 12,000 pounds.
KD4UPL 06/04/19 08:11pm Truck Campers
RE: Outback IC

I've been using and installing Outback inverters for 14 years. Most have never needed repair. The nice thing about the FX series is that you can repair them. They basically consist of 3 circuit boards and the big heavy transformer. I've got 8 used ones in my shop right now that I traded in on a new Outback Radian. I went thru the old FX models, replaced the bad parts, and have them listed for sale now. Hopefully I'll make some money on the endeavor. My entire house (except the heat pump, dryer, water heater) is backed-up by 2 VFX3648 inverters. They are 13 years old and never given a single problem.
KD4UPL 06/04/19 07:59pm Tech Issues
RE: 240V from 120V generator

Wow. Those transformers that time2roll and htss linked too sure are pricey. The Outback PSX-240 is only about $600. Theoldwizzard, thanks for mentioning the interlock, they are a great alternative to a transfer switch. They only cost about $70 and are available for just about any panel.
KD4UPL 06/04/19 07:46pm Do It Yourself Modifications and Upgrades (DIY)
RE: toy haulers stop at weigh stations?

If you are truly a recreational vehicle you do not have to stop. If you are making money you are commercial. This would include any type of racing where you could win money. I have a relative who is a profession motorcycle drag racer. He had his race trailer all covered in sponsors stickers. He didn't stop at weigh stations and got pulled over a lot. He removed all the stickers from his trailer, still doesn't stop at weigh stations, and doesn't get pulled over anymore.
KD4UPL 06/03/19 07:40pm Toy Haulers
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