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 > Your search for posts made by 'Snowman9000' found 535 matches.

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RE: Mean Well power supply for my usage

No, I am NOT looking for float! I'm looking for a charger to put in a lot of AH in 2 hours of run time on an Onan genset. Period. I gots float otherwise covered. And equalizing too. :) I gots confused by you asking so often whether the mod PM3 did float. :) The tangents make it hard to keep up. I was trying to make sure I understood what it does and doesn't do. It sounds like it would do what I want: Full amps till full volts reached, then hold the volts while amps taper. Unless it's now unreliable or flaky in some way? I would retain the regular wfco converter for converting, float charging, etc.
Snowman9000 10/22/14 08:04pm Tech Issues
RE: Charging Amps engine alternator vs Generator

OP, My Class C has the converter going through 27.5 feet of #6 wire, then 3' of #2, to get to the batteries. If yours is like that, even the upgraded converter is going to struggle. I can and will relocate or replace mine into a kitchen cabinet under and behind a drawer. From that point it will only be about 5 feet of wire total to the batteries. The existing wires going back to the distribution panel will remain in use, there just won't be a converter back there too. You might have a similar place to mount a converter. You'd have to run its 120v power cord to an outlet, which in my case is no big deal.
Snowman9000 10/22/14 07:57pm Tech Issues
RE: Tiny house crossover to RV?

I believe it's on the Discovery channel. We've watched several episodes. The time they devote to the purging of possessions is interesting. What bugs me is how they keep using big composting toilets, yet they have sinks and showers. They do not explain the whys and wherefores. Makes me wonder if they are dumping gray water on the ground.
Snowman9000 10/22/14 07:38pm Class B - Camping Van Conversions
RE: Mean Well power supply for my usage

No, I am NOT looking for float! I'm looking for a charger to put in a lot of AH in 2 hours of run time on an Onan genset. Period. I gots float otherwise covered. And equalizing too. :)
Snowman9000 10/22/14 07:28pm Tech Issues
RE: Mean Well power supply for my usage

BFL, on the PM3, how did simply adjusting the voltage pot make it hold the full voltage in absorption, and also no longer float? Or do I have that wrong? I don't know how it does it :) The procedure is to plug it in on bench no load with multimeter in the output. You will see it says 13.6. turn that up to 14.8. put the lid back on. done. Now when you start the recharge from any SOC , it will bring the battery voltage up to 14.8 (Bulk Stage) and then it stays at 14.8 while amps taper. (Absorption Stage) that's it. I don't know if it will ever float after a long time at 14.8, since I never leave on that long. I suspect all the voltages will rise when you crank up the pot. On the Paramode, which also has that internal pot, when I cranked that up to 14.8 (from 14.2) it also raised the float voltage from 13.6 to 14something, forget number. Well that sounds ideal for a fast genset charger. Is there a question about the durability, then?
Snowman9000 10/22/14 01:31pm Tech Issues
RE: Mean Well power supply for my usage

BFL, on the PM3, how did simply adjusting the voltage pot make it hold the full voltage in absorption, and also no longer float? Or do I have that wrong?
Snowman9000 10/22/14 10:54am Tech Issues
100w Solar Panels, poly, $109 shipped USA

I have their 50w panels, they work fine. Note, you have to supply cables to their junction box though. The j-box has screws which will accept a round lug, or you can solder to C-shaped tabs. The box has strain relief squeeze connectors. I just ordered two of the 100's to put on my roof. http://shop.mlsolar.com/Solar-Panels_c5.htm
Snowman9000 10/22/14 10:44am Tech Issues
RE: Mean Well power supply for my usage

BFL, Just to make sure I understand... On a PM3 converter, adjusting the voltage pot turns it into the same type of power supply as the Mega Watt, Mean Well, etc.? First, it outputs full amps, until voltage setting is reached. Then, it holds that voltage and tapers the amps. And no float? Yes? No? It seems crazy that simply adjusting the voltage setting will cancel the voltage step downs in stages 2 & 3. But if so, I'm very interested.
Snowman9000 10/22/14 07:56am Tech Issues
RE: '92 Jayco faucet parts?

I had a 93 Jayco up until recently. I rebuilt the faucets within the past 5 years. The parts are out there. I can't recall the brand, but they are an RV brand used by OEMs. Search RV faucet parts on google and see if that leads you anywhere.
Snowman9000 10/22/14 06:24am Do It Yourself Modifications and Upgrades (DIY)
RE: Mean Well power supply for my usage

One of the other members here, I think it was jrnymn7, modded a Boondocker 45. As I read his account of it, it still drops voltage as soon as it hits the target voltage, but the whole curve is higher in voltage. So instead of 14.6 dropping to 13.6, it's say 15.2 dropping to 14.2. BFL, you say your modded PM3-100 just stays at the 14.8? Just by setting the internal pot? Is the internal pot still present on the new models? On all sizes, or just the big guns?
Snowman9000 10/21/14 09:37pm Tech Issues
RE: The 12V power source solar panel

30 AH on a winter day in AZ is possible with 150W, if it stays there all day long. Not 2-3 hours. Yeah, that's the problem with cheap chargers, they don't see the battery voltage after voltage drop. I don't know why running inverter at supper time should have any effect on solar. "Supper" is usually something that comes later "dinner", meaning around dusk or later :)... March 8 of last year at Roosevelt Lake, AZ, I got 54 amp-hours from my 100 watt portable, re-aimed several times during the day. 9+ hour time span. It was a clear day, as you could guess. :)
Snowman9000 10/21/14 05:39pm Tech Issues
RE: Mean Well power supply for my usage

So, this is the bottom line... is a 33-36A Mega Watt going to put more watts into the batteries than a larger 14.4-14.6v converter in the first two hours of a genset charge?
Snowman9000 10/21/14 05:30pm Tech Issues
RE: Mean Well power supply for my usage

I am the original early adopter... I bought a Mega Watt for $55. I have one 150 AH battery. That's a hair less than a pair of Group 27s DC's.... NB, can you describe what happens as far as volts and amps over a two hour period? And also if you let it run for longer? What I'm asking is, does it behave as a constant current charger at first? Sending max amps, while the voltage rises through the 13's, and topping out at 14.8? Then, does it taper amps while holding 14.8? (Constant voltage) If left on for 24 hours, would it taper amps down to next to nothing while staying at 14.8v? I don't plan to do that, but I want to understand how it behaves.
Snowman9000 10/21/14 07:14am Tech Issues
RE: Mean Well power supply for my usage

The object here is for the optional PS to take over when the P.O.S. OEM converter decides to lean on a shovel, right? No. I want it to be the initial, bulk charge. Only for those times when I charge from a genset, up to two hours or so. From what I've been reading, it sounded like the p.s. would actually outperform any of the converter chargers for the first two hours of charging. Am I wrong about that? A Mega will do fine. Set the voltage to 14.8 Two hour of "BOOST" at 14.4 will deliver around 60 to 70 amp hours. When it drops back to "NORMAL" at 13.6 the game is all over. The batteries are going to laugh at that unless you use a sundial as a timer. This is where a power supply kicks in and fills the gap at 14.8 volts. I'm not sure if you are saying using the Mega for the first two hours, or for two hours beginning after my converter drops to 13.6V. BTW I currently have WFCO, so 13.6 is probably the most it will ever do. So am I on the wrong track?
Snowman9000 10/21/14 07:07am Tech Issues
RE: Mean Well power supply for my usage

So, if using the Mega or Mean 30-40A stuff wastes gasoline, I'm probably tripping over dollar bills to pick up nickels? Like I said above, I thought 40A was about the limit I should throw at the batteries. BTW, cables will be 3', and fat.
Snowman9000 10/20/14 06:45pm Tech Issues
RE: Mean Well power supply for my usage

If your charger only does 40a, then on two 27s, it will take about two hours to do a 50-80. If you keep going, then in another hour you will get from 80 to 90. Three hour 50-90. I would prefer a two hour 50-90 but that takes a 70 amp charger on two 27s, which will accept that perfectly. The PD/Onan issue just means the PD will do fewer amps but not that many less. One way to solve this would be a PowerMax 75a adjustable voltage model from Randy, but first make sure it is PF corrected so it can run on a 15a circuit, then consider the cost. You can do anything if money is no object! Money is always an object. :) Less than $100 would be sweet. Less that $200, tops. Cables not included. I'm just looking to be able to blast some AH in, in the event of non-sunny days off-grid. I figured C/5 was a good number of amps to charge with, and two hours is about all I want to run that noisy, smelly Onan. I'm not a battery pamperer though. I like what people say here, "my batteries work for me, not the other way around". Mine spend too much of the year idle, which is probably a bigger issue than a few hard charges per year.
Snowman9000 10/20/14 06:42pm Tech Issues
RE: Mean Well power supply for my usage

Saw your later edit on the SLA charging. My batteries are not SLA, but are regular LA.
Snowman9000 10/20/14 06:33pm Tech Issues
RE: Mean Well power supply for my usage

To answers some of the questions and points raised: -No equalization needed from this charger. -120v current is a 15A dedicated circuit. -Concerned about the notorious PD underperformance on Onan electricity. Will going to the 60A take care of that? -Doesn't the Mean Well taper amps according to battery acceptance? Or does it keep pushing 40A, and the voltage runs wild? AFAIK, all psu's are constant current, constant voltage, meaning; just like a so-called smart charger, when charging begins the current will hold steady, in constant current mode, at the units set limit (called current limiting), the volts will rise to your voltage setting, at which point the unit will switch to constant voltage mode, and the amps will indeed taper. All a 3 stage "smart" charger is, is a psu with preset (factory) limits, and an additional float mode. The psu will have a max POWER output, i.e; 600 watts, which is a product of volts and amps, as I'm sure you probably know. If for instance, the psu is 600w and has a range of say 12-15v, and is rated for a max of 40a, then it would put out little more than 40a regardless of a lower voltage setting. 600w / 12v = 50a, but the psu has a limit as to its max.current out put. And as with any charging source, the batts will have the final say when it comes to how many amps they will accept; realizing, of course, a higher voltage will accommodate higher amps throughout the charge cycle, until the batts amp reading levels out (becomes static) once full. That's what I thought. It sounds perfect to me. Basically a charger that does a good job at bulk and absorption, with no ability to float at a lower voltage. For two hours on a genset, is there anything that can go wrong? Sorry, I'm not familiar with the issue concerning onan and pd? Just as well. No need to derail the thread, I probably should not have brought it up. Basically though, the PD converter sees the waveform of the Onan genset as a relatively low AC voltage. And that reduces the output of the PD in that situation. I think the common wisdom is to go up one size in the PD lineup, and that should make up for it. For the reasonable price of the PD9260, if it will pump 40A for at least two hours (assuming the batts can accept) while trying to hit 14.4v, on the Onan, I'd probably just go that route.
Snowman9000 10/20/14 06:32pm Tech Issues
RE: Mean Well power supply for my usage

To answers some of the questions and points raised: -No equalization needed from this charger. -120v current is a 15A dedicated circuit. -Concerned about the notorious PD underperformance on Onan electricity. Will going to the 60A take care of that? -Doesn't the Mean Well taper amps according to battery acceptance? Or does it keep pushing 40A, and the voltage runs wild?
Snowman9000 10/20/14 05:46pm Tech Issues
Mean Well power supply for my usage

I've been reading old threads for a couple of hours. I'm fairly sure a Mean Well p.s. can do what I want to do, but I'd appreciate if one of you early adopters can point me to a specific model, etc. What I want to do: Have an installed bulk charger for running from my late model Onan 4K genset, set to provide 14.4 to 14.8v max, capable of up to 40A as long as the two Group 27s will accept it, then tapering as necessary, till I shut it off (say 2 hours max). I would monitor with a volt and ammeter. I'd like the unit to be pretty much plug and play. Am I on the right track? The SE600-15 model seems to be exactly right. Is it? Thanks.
Snowman9000 10/20/14 03:18pm Tech Issues
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