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 > Your search for posts made by 'ktmrfs' found 395 matches.

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RE: 6 or 12 That is the question

Which is better-- 2x6V deep cycle or 2x12V deep cycle for boondocking? My setup right now is 2x6V which gives me 260 ah. I found 2x12V that will give me (2x150=) 300ah. Are the 12's really better than the 6's? assuming you keep your amp draw to 30A peak or so, I'd go with 6V. that is typical load is some LED lights, a gas fridge, an exhaust fan. Now a pair of 6V GC2, 250AH useable AH is 250*0.75 about 180-190AH. That's correct, you can discharge typical GC2 batteries down to 25% SOC and STILL get hundreds of cycles out of them. Trojan std GC2 is 500 cycles @ 75% DOD. Compare that to a very good set of 12V that give you life at 50% DOD, even trojan 12V deep discharge cycle life drops like rock once you go below 50% DOD. So the 300AH 12V give you 150AH cycle life at 50%. Advantage goes to GC2.
ktmrfs 08/03/21 07:21pm General RVing Issues
RE: 6 or 12 That is the question

Friends just bought a new 32-34' Cougar 5er (much better quality than I expected) . They have not added the batteries yet at the Dealer. They have a Solar Panel on the roof and a 2,000 Inverter. I told them to be sure they get two 6V batteries and when asked why I couldn't give an exact reason other than it's the best way to go. So please help either tell me I am wrong and why or that I am correct and why. Thanks! If they expect to use the full 2000W or even 1000W from the inverter to run a microwave, don't expect a pair of 6V to work unless they are 80%+ charged. Internal resistance of 6V is the downfall for heavy loads. If they don't dry camp much if at all, stick with a pair of the typical "marine" 12V, much less expensive and will serve the purpose well. If they dry camp a lot, usually only use lights, ceiling vent fan, furnace etc. then a pair of GC is a good choice. If the dry camp a lot and want to use the microwave or heavy draws (>50ish amps) often, two choices, 4 GC2's, or a pair of real 12V deep discharge batteries. And more than likely the trailer has a WFCO charger. if they dry camp and want to charge the batteries from a generator quickly don't expect the WFCO to do much. They are seldom if ever known to go into boost mode, instead only stuffing 15A or so into the bank. Toss it out and do a drop in PD replacement and easily get 55A of charging current when needed. If they don't dry camp much, no need to replace the WFCO My $0.02 worth from 10 years experience with batteries, camping etc. for us and many friends we camp with.
ktmrfs 08/03/21 10:36am General RVing Issues
RE: Bent WD snap up bracket on dual cam setup.

Well, I returned home over the weekend, and with the replacement standard bracket and noticed that the new one is beginning to bend. So I decided to get my tongue weight. Yesterday via the bathroom scale method. In my first measurement, I got 1350lbs of tongue weight. This is with the trailer not fully loaded for a trip. Missing are basically clothing and food items as that is pretty much what we have to pack for a trip. I also will sometimes travel with some water in the fresh tank, so I added about 1/3 of a tank and the tongue weight went up to 1500lbs. Either way, I am looking at DOUBLE the published tongue weight. I understand that the published is basically empty with no propane tanks, battery, etc, but I did not expect it to be double when loaded. So I am grossly exceeding both my bars, and the standard snap-up brackets (which BTW are rated at 800lbs it appears). Guess I going to move up to the 16K Equalizer setup, as buying the pieces to the Reese are also the same cost. This will get me some increased ground clearance (at least it appears I will). yup, published tongue weight is often WAY below actual. It is the measured weight w/o any batteries (60lbs each) or any propane in the tanks (30lbs each) both of which add 100% of there weight to the tongue, along with the weight of other stuff. My trailer had an advertized tongue weight of about 800lbs, don't recall exactly, but when we got the trailer I weighed the tongue w/o any batteries or propane and off the lot and it was close the factory number. Once I put on batteries, filled propane, loaded the trailer with our stuff, tongue weight was 1400lbs, with full water tank about 1550.
ktmrfs 08/03/21 10:29am Towing
RE: RV navigation systemsl

We have the garmin RV890 had a previous version years ago. Advantage: after entering trailer and TV info will help keep you from going down roads you shouldn't and won't route you on those roads Lots of info on campgrounds, RV related stuff etc. Great integrated optional rear view/backup camera and input for a optional camera Disadvantage: Google maps or our car display does a better job showing traffic and google does a fantastic job of direction display and test especially if you can link it to your TV nav display. But google looses some of it's value if your in areas with poor or no cell reception. for planning, we still use microsoft streets and trips. Old but still works well for us. You may want to download Garmin's free Basecamp program for your route planning. Once you plot a route (or multiple routes) you can then directly upload them to your Garmin device. You can also determine the vehicle configuration in Basecamp so that it will also take weight/height/length/width into consideration. One tip, if you do install Basecamp, attach your Garmin to your computer and then run Garmin Express and make sure that you have the latest map database installed on your GPS. Once this update is performed, leave your GPS attached (for the first local map install) and then also install the map database to your computer. This will allow the program to run much faster and you don't need to have your Garmin device attached to your computer to access the map database. I do use basecamp. We do lot's of trips on FS roads so with my Garmin Montana I use basecamp and also have the topo 24K maps installed. And the custom POI lists are nice for any GPS unit. Actually I can load custom POI's into our Denali factory Nav unit as well as our Acura MDX factory Nav unit.
ktmrfs 08/02/21 09:46am Technology Corner
RE: Wi if booster

Whatever you buy, you may be disappointed. A booster can help you get connected to a weak signal but it can't increase the total bandwidth available. And it looks like you're more interested in bandwidth to stream video. To the OP read this one again. My experience in many cases it’s not the WiFi signal strength. Most often it is the number of people trying to access an under powered WiFi access point, insufficient bandwidth none of which a WiFi booster will help. What might be a better option is to assure you have good cell service, perhaps with a cell signal booster, an unlimited service plan, and something else todo when all else fails. very true. Often in these places the cell providers aren't providing enough towers or channels to support full bandwidth. And while a booster can get you better signal strength, signal strength, unless the signal is very strong, also affects the bandwidth you can get regardless of available bandwidth. With lower signal strengths lots of error correction goes on reducing available bandwidth. Yes, we use a weeboost booster very often. Works excellent for what WE want, ability to make phone calls, recieve text messages, send a text with a picture, get info from a web page, check email, all lower bandwidth needs. Streaming video, or even youtube? not so likely to succeed.
ktmrfs 08/01/21 08:03pm Beginning RVing
RE: RV navigation systemsl

Throw out the Garmin style GPS. Your smartphone and Google Maps and/or WAZE is all you need. Additionally, the information on Google Maps is years ahead of anything available on the standalone GPS's. As an example, I-70 here in Denver was closed for the weekend and Google Maps showed that closure and the correct route to avoid it. This would be impossible with a Garmin. We traveled out west earlier this year and many places had spotty or no cell service. If you're going to use only a smartphone for navigation then you'd better use a program like CoPilot or Sygic where larger map databases can be loaded directly onto the phone so that a cellular connection isn't needed. As to the traffic reports, all three of my various Garmins have a data link to my smartphone and receive immediate traffic updates so it IS possible to get dynamic traffic updates with a Garmin GPS. I have a Garmin DriveAssist 50 in one vehicle and a Garmin DriveAssist 51 in another. I use a Garmin dezlcam 785 LMT for my RV. It's a GPS that's designed for commercial vehicles and I have it because I drive charter motor coaches but it will support multiple vehicle configurations.. All three of these GPS units not only access dynamic traffic data but all three also have built-in dash cams. An added bonus is that I have Garmin's free Basecamp program installed on my PC. The program lets me design trips and then upload them directly to my Garmin so the GPS will then contain custom designed routes already installed and ready to go. If I encounter unplanned construction or traffic delays, the Garmin will automatically plot a detour around it if I want the device to do so. And then there's that problem when you're using a smart phone for navigation in a big city with numerous, fast approaching set of instructions and then you get a text or phone call at the worst moment possible. I have the above programs installed on my cell phone but they're only there for backup purposes or if I'm traveling on a boat or train and want to know my location. my experience as well on the Garmins. Yes, maps may not be as current as Google, and a few other things, but we very often travel in spots where we go 100+ miles with NO cell reception, and frankly the Garmin direction map and directions are as good as google, sometimes better. "Turn right at the next stop light on x street just after the McDonalds on the right" Or on freeways showing all the lanes you can use to turn and on a big screen. And the RV Garmins make it easy to find RV related items.
ktmrfs 08/01/21 07:57pm Technology Corner
RE: Battery Replacement?

"My vote is do a load test. Most battery places will do such a test for free." To do so the batteries need to be separated. true, but that is easy peasy to do.
ktmrfs 08/01/21 05:17pm Tow Vehicles
RE: Battery Replacement?

Living i the Central Valley of Ca, you are right on the cusp of replacement time. Extreme heat is the killer of batteries. Carrying a single jump pack won't help with w diesel. Only you can decide what to do. I usually wait until they die, then find out right when I am getting ready to go somewhere. Then I have to tell the DW it'll be an hour....I have to go to Costco to replace the batteries again. with two completely dead batteries on my duramax, and temps of about 50F, I dug out my costco jump start from under the back seat, plugged it on, took about 5 seconds for the glow plug light to go out, hit the ignition, cranked slow but started up quickly. Yes, a decent jump start unit is capable of starting a diesel in moderate temps. pretty much drains it the first time, but can be done.
ktmrfs 08/01/21 05:16pm Tow Vehicles
RE: Battery Replacement?

Do a load test on them. That is about the only reliable way to see what condition they are in. Depending on climate, etc. batteries could last 5 years (hot climates) or less or 10 years in milder climates. On my 2004 duramax it's on it's 3rd set of batteries. OEM's lasted just shy of 10 years, Next set of Delco's 7 years, Now our son has it and has an Intersate in it. On my 2015 at 6 1/2 years I replaced the OEM delco's with the top of the line Delco's. The OEM were getting weak, during covid the truck often sat for 3-4 weeks between starts and the were starting to have self discharge issues.
ktmrfs 08/01/21 09:08am Tow Vehicles
RE: Providing my own WiFi

W We would like one device or program to provide WiFi for both phones. I am confused by this statement. Why would you bring on another device to provide WIFI for your phones and not just use your data plan? You already have both major carriers to get better coverage so it would probably be better upgrade your data plans (if needed) rather than get a third line from a single carrier. If you want WIFI for your PC's, my wife and I cruised for 6 months both working full-time on our laptops using my Samsung and AT&T unlimited data as a WIFI hotspot. I was also in conference calls at least 4 hours a day while we used the hotspot. I did need to keep the phone plugged in the entire time we worked (and at night while it monitored our anchor for drifting)! Dave phone or dedicated hotspot device both work well. Advantage to a dedicated hot spot device include 1) you can leave it in the trailer/car etc. and use your phone outside on a walk/bike ride etc. and those in the trailer still have wifi 2) phone as a hotspot drains phone battery quick, while I can get 24+ hours on the hotspot so it doesn't need to be plugged in all the time, plug it in at night to charge 3) it has two dedicated antenna connections which can help with reception. disadvantage is it adds a device to your line, in our case a whole $5/month. no big deal. and it costs to start with in our case about $100. So, think about your use and pick whatever works best for YOUR needs.
ktmrfs 07/30/21 02:33pm Technology Corner
RE: Electric bikes !!

I’m aware! I don’t travel at night and the signal lights are still visible…somewhat. The bikes are the last thing to get loaded before I leave the city and I drive extremely defensively in traffic, so I am more worried about a ticket than an accident. If I do get one I will have to re-think things. I have thought of relocating the plate. I added a warning to my post for anyone who may consider this option. In oregon your ok for the headlights as long as your driving in the daytime. nighttime would get you into trouble. I looked at this option for my motorcycle on a front rack. Headlights and turn signals would have been ok, but the top of the bike interfered to much with my forward vision so I dropped the idea. My truck also has turn signals visible on the rear view mirrors from the front or back, not sure if that would suffice for turn signal visibility. Aren't headlights required in rain and fog? depends on the state. Not required in oregon. headlights required to be on from 1/2 hour before sunset to 1/2 hour after sunrise and when you can't see cars 1000ft in front of you. So you could be required to use headlights during heavy fog or heavy rain. On two of my cars, headlights do come on automatically when the wipers are on or in intermittent mode.
ktmrfs 07/30/21 11:31am General RVing Issues
RE: Electric bikes !!

I’m aware! I don’t travel at night and the signal lights are still visible…somewhat. The bikes are the last thing to get loaded before I leave the city and I drive extremely defensively in traffic, so I am more worried about a ticket than an accident. If I do get one I will have to re-think things. I have thought of relocating the plate. I added a warning to my post for anyone who may consider this option. In oregon your ok for the headlights as long as your driving in the daytime. nighttime would get you into trouble. I looked at this option for my motorcycle on a front rack. Headlights and turn signals would have been ok, but the top of the bike interfered to much with my forward vision so I dropped the idea. My truck also has turn signals visible on the rear view mirrors from the front or back, not sure if that would suffice for turn signal visibility.
ktmrfs 07/30/21 10:46am General RVing Issues
RE: Thermostat: Heat/cool 1 area. Anyone switch to Digital

swapped ours out for the micro-air RV digital programable thermometer. besides the AC unit, it can control heat from furnace or heat strip and switch between them and control dual AC units.
ktmrfs 07/30/21 08:58am Tech Issues
RE: EV's I know there are folks better versed than me in here

Dang physics. Energy density of lithium ion battery 0.37 to 0.95 MJ/kg Energy density of gasoline 44.0 MJ/kg gas engine efficiency about 25% at best during a drive cycle. electric motors in the high 90-95 %. + the energy recovered during braking. so that turns tables to about 5 or 10:1 on a weight basis. still and advantage to a gas engine, but not as dramatic as it first seems. Key is 1) getting charging tine down to about time to fill a gas car 10-15minutes 2) getting infrastructure to support the charging 3) getting power from non hydrocarbon or carbon sources (coal, NG)_ Thermal efficiency of gas turbine power stations is about 60%, better than internal combustion but still not great. For what it’s worth, on a typical road trip for us our average Supercharger break/stop is around 10 to15 minutes. Maybe 20 minutes for lunch. We don’t stop to charge, we just charge while we are stopped. yes, that is getting down to about what a typical fuel stop time is when traveling. Now if they had the charging stations at highway rest stops, and a typical charge was 20 minutes or so, it would for us be less time than a fuel stop. rest stop= fuel stop and not on/off the freeway for gas. While we can go 600+ miles between fuel stops with our truck when not towing we usually stop every 200 miles or so, sometime less at a rest stop and stretch our legs etc. Our car can go almost 500 miles/tank, but again stopping every 2-3 hours at a rest stop and a charge top off would be less overall time than stopping for gas along with rest stops.
ktmrfs 07/30/21 08:54am Tow Vehicles
RE: EV's I know there are folks better versed than me in here

Dang physics. Energy density of lithium ion battery 0.37 to 0.95 MJ/kg Energy density of gasoline 44.0 MJ/kg gas engine efficiency about 25% at best during a drive cycle. electric motors in the high 90-95 %. + the energy recovered during braking. so that turns tables to about 5 or 10:1 on a weight basis. still and advantage to a gas engine, but not as dramatic as it first seems. Key is 1) getting charging tine down to about time to fill a gas car 10-15minutes 2) getting infrastructure to support the charging 3) getting power from non hydrocarbon or carbon sources (coal, NG)_ Thermal efficiency of gas turbine power stations is about 60%, better than internal combustion but still not great.
ktmrfs 07/29/21 10:44pm Tow Vehicles
RE: Ultimate payload monster?

Ktmrfs Class 1 is 0-6000 lbs Class 2a is 6001-8400. Basically an HD class 1. Class2b 8401-10000 lbs. Class 3 10,001-14000? Possibly 13500 or 14500. Having a brain fart at the moment. 1 and 2b a generally speaking half ton/15 series trucks. Need to meet stricter emissions, mpg stats etc. 2b/3 trucks have a different emissions, don't need to meet at this time mpg specs..... Class 4-8 up to 33000 are medium duty, 33k up are typically class 8. Tandem rear axle trucks. There are a few 7s depending upon spec that can legally get to 40,0000 gvwr. Marty thanks for the detailed info. So it looks like GM moved the 2500 to class 3 since at least with the duramax GVWR is 11,400 ish, pretty much limited by tires/axles as SRW.
ktmrfs 07/29/21 07:31pm Tow Vehicles
RE: Ultimate payload monster?

GVWR isn't just about dead weight. Consider suspension, brakes, stopping distant, stability when turning/swerving, weather, road conditions etc. Maybe other factors like mfg libiality etc. GVWR is all about licensing and keeping it in a certain weight class. maybe not all, but certainly a big part of it. "3/4" ton trucks usually fall under class 2? rating which is GVWR<0=10,000lbs. so at least part of the rating is the class. GM last year or so finally bit the bullet and has the 2500HD as a class III so the SRW has a GVWR of around 11,400 similar to a 3500SRW. Now if you want less for licensing as expected there is a <10,000 GVWR option, just like on the 3500's SRW. And IIRC the 1/2 tons class rating is <=8800 lbs.
ktmrfs 07/29/21 04:52pm Tow Vehicles
RE: Oregon State Parks Fire/open flame ban!

Not sure I understand the ban on propane firepits. What the difference between a propane firepit and a propane stove/grille? one allows you to have a way to cook. The other is generally for "ambiance". FWIW in oregon usually propane fire pits are allowed if they can be shut off with a valve. But when fire danger gets high enough banning propane fire pits eliminates one more possible source of a fire. Right now most of oregon is tinder dry, even in the normally wet Portland area. roadside vegitation looks more like late august, even coast campgrounds have lots of brown vegitation. Eastern oregon is even worse. It won't suprise me if some campgrounds and forest areas get closed to all access if this weather keeps up.
ktmrfs 07/28/21 04:53pm General RVing Issues
RE: Great Tow Capacity - Bad Payload Capacity... Increase PL?

GM partially solved the problem a year or so ago by changing the classification of the 2500HD trucks and hence upping the std GVWR to 11,400ish for a 2500 SRW. Option is a <10K GVWR for those who have a reason for a lower GVWR. So now the 3/4 ton GM and 1 ton SRW have basically the same GVWR.
ktmrfs 07/28/21 10:58am Tow Vehicles
RE: Electric bikes !!

E-bikes are fun and you can see a bunch but is that no or low exercise activity what is best for you vs. pedal power? Have you ever riden an e bike for any length of time over varied terrain? It's hardly a "low excercise" activity, more of a "continous excercise" activity. it's pedal assist and on level ground your the power, on hills yes, it helps a great deal but your still pedalling. And for us it's easy to get out and do a 25+ mile ride for a few hours instead of 30 minutes on a short ride. So overall I'd say we are getting more and better excercise on an e bike. And why is a bike only for excercise? Often places we want to go are only accesible by bike, or we want to take the slow and scenic route that a bike give us. e bikes are perfect for that.
ktmrfs 07/27/21 05:05pm General RVing Issues
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