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 > Your search for posts made by 'landyacht318' found 525 matches.

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RE: My Screwy 31

The 31 has not been working very hard. 20 to 30 ah a night. Ive been urban stealth boondocking for the last 2 weeks. And not using biggest electric al draw, the laptop. No meanwell assist. Alternator and solar only. It is not holding impressive voltages under this lighter duty use, but I had lowered max voltage to 14.7 in deference to agm many days. Today it spent hours at 15.3v while winding through the mountains and it appears to be rallying somewhat However I suspect that getting 400 cycles from it might be unrealistic. Well see.
landyacht318 10/27/14 08:33pm Tech Issues
RE: Turnigy psu goes into Over Current Protection on start up.

Even a slightly depleted battery, briefly, asks for huge amounts of current. I saw my screwy 31 @ 1 ah from full. Take 47 amps. This quickly tapered. But this is enough to trip overcurrent protections. My cheapowatt tests indicated that the voltage had to be set just above battery voltage to keep it below that 36.2 amp buzzing threshold. And twiddle d multiple times as battery voltage rose to keep the amps up. Looks like the Turnigy is not going to cut it as a large battery charger unless you use another charging source to bring battery voltage to mid thirteen s. Then turn it loose.
landyacht318 10/24/14 09:17am Tech Issues
RE: PD9260 Convertor Never Goes To 14.4V

It takes time for battery voltage to catch up to converter voltage. When I set my meanwell rsp -500-15 to 15 volts, then attach it to the battery. The voltage at the mw terminals drops to mid to high 13s and battery voltage is likely a volt under that. Where are you measuring voltage at? A clamp on dc ammeter is enlightening. Voltage is deceiving.
landyacht318 10/23/14 10:51pm Tech Issues
RE: Mean Well power supply for my usage

Mex. My cheapowatt started buzzing at 36.2 amps, no matter the battery voltage. Well as long as cheapo was set .3v or more higher than bbattery voltage. I think keeping it at 35 amps with perhaps increased ventilation. It would not have smoked. But constant pot twiddling was needed to keep it just below buzzing for maximum amps.
landyacht318 10/21/14 10:09pm Tech Issues
RE: Mean Well power supply for my usage

Az a meanwell owner. I think with 2 hours of genny time and 2 27s, Id follow bfls advice and get a powermax 75 amper with adjustBle voltage. If it pfc. My groups 31 will easily gobble up 40 amps when depleted.
landyacht318 10/21/14 06:42pm Tech Issues
RE: Mean Well power supply for my usage

I posted three charts using my meanwell rsp-500-15 in that thread It will do nearly 41 amps until battery voltage comes within about 0.3v of the voltage setpoint I choose. Then amps taper. Either megawatt will work fine. If you get a meanwell get one which says constant current on overload. Not hiccup mode nor anything else. The rsp series kicks burro. I love the control. The 3 stage chargers have their place and their fanboys who promote ignorance in their desire to get others to approve their purchase. The higher the chosen voltageof the mw's the longer it remains maxed out at 40 amps
landyacht318 10/21/14 11:03am Tech Issues
RE: New Boondocker converter test

Same make as yours recent overstuffed journey mobile, 6 model years older. 3/4 ton chassis. supposedly rated at 130 amps, though I see only 120 and 90 amp versions listed on Rockauto. Looks like this: http://www.rockauto.com/getimage/getimage.php?imagekey=1000587&imageurl=http%3A//www.rockauto.com/info/ACDelco/334-2087_Primary.jpg width=400 Got a lifetime warranty on what I got, but from defunct Autoparts store. . Its now 7 years old. When it fails, then perhaps I'll find something better. I've concerns about field wires of something more robust, messing with ECU.
landyacht318 10/15/14 11:58pm Tech Issues
RE: New Boondocker converter test

The typed word rarely conveys the tone in which it was originally written. The apologies are mine. I know very capable alternators exist. I didn't realize so many newer cars came that capable. Or wired sufficiently to take advantage of that capability. I was rather impressed with how much more a doubled 4awg cable to my battery switch increased charging amps, at rpm. I am not impressed with hot idle speed current. The VR being internal to the ecu has kept me from doing anything more. Bypassing it sets off the check engine light. Cant pass smog with a lit CEL. New ecu is $$$. Ill have to live with it. No biggie. I have other sources. Can always bump rpm to 800 sitting at a red light to make 45 amps. Still have a cold air intake idea to feed back of alternator, but other projects take priority.
landyacht318 10/15/14 07:46pm Tech Issues
RE: New Boondocker converter test

So a person cannot exaggerate anymore. Does anybody believe this 170 amp alternator was installed because it needs to make 170 amps regularly and daily and for prolonged periods? Didnt think so
landyacht318 10/15/14 02:05pm Tech Issues
RE: New Boondocker converter test

I doubt VW was trying to feed 170 amps into the AGM. Is the cabling 4/0? didn't think so. I think these higher rated output alternators are merely for more overhead safety margins. My 130 amp alternator, by my observations, could likely reach that output, if I put the second V belt back on, and revved the engine to 4000 rpm when cold. When hot at 550 idle rpm, the thing can only make ~30 amps. This is with an undersized pulley. If I have my blower motor on high and the headlamps on, 10 amps are flowing from my battery to make up for what the alternator cannot provide I've seen my screwy 31 take well over 70 amps from the alternator, I've seen my Northstar group 27 AGM take well over 90. Not sure of the durations that these could accept these rather extreme currents. My Ammeter is not on the dash for easy observation, and once my alternator heats up is it not capable of delivering them anymore.
landyacht318 10/15/14 12:15pm Tech Issues
RE: Warning: NonRV Solar Question

Ants avoid areas where Dawn dish soap was applied. Even long after a rain appears to have washed it all away.
landyacht318 10/14/14 06:09pm Tech Issues
RE: Warning: NonRV Solar Question

Only if you care about the battery: https://www.youtube.com/watch?v=z5RtZe9AW2E&list=UUoPqTkOluQsuu3RpGnxVwFw&index=8
landyacht318 10/14/14 05:05pm Tech Issues
RE: New Boondocker converter test

I've done the match battery voltage and increase trim pot slowly and just set the trim pot to 14.7 and then plug into the battery. Does not take much to send the Meanwell to the maximum on the slow dial, pretty much goes right to 40+ amps at half a volt difference. When setting to 14.7v and plugging in, right to 40.94 amps even if solar had battery at 13.9v. No soft start capability. I've no idea if one or the other is easier on the unit or the battery. With a 10 turn pot, it is not easy to just dial in 14.70v and mark it, so I usually dial in 14.81v then connect the 45a Powerpoles. Usually within 40 minutes battery voltage has hit 14.7v and amps started tapering at the ~35 minute mark.
landyacht318 10/14/14 02:29pm Tech Issues
RE: Grumble Gripe Snivel Wal-Mart Maxx Battery

Maximum profit = Cut all corners. Buyer still needs to have confidence in product. so Invest in more marketing. and run it past the lawyers, can we get away with it? I once went on a tirade here against a shorted cell wally world battery which failed at 11 months, and all the wally world lovers came out of the woodwork to slam me. Stop calling yourself frugal you cheap ....... :) Now when one seeks out quality, and pays extra for it, then finds it is junk, then the sniveling is justified.
landyacht318 10/12/14 12:44pm Tech Issues
RE: 20W G4 Halogen LED Replacements

I've got a few dozen t10 wedge base 194/168 LEDs and boy do they vary in output and color, even amongst the same batch from the same seller. I dislike the bluish hue on many. Some of the warm white just seem way too artificial. Some kill my TV stations. Probably my favorite are some name brand Phillips in the 4000k color. These are also the most efficient, but not the absolute brightest. I like being able to aim my light where desired, and so have mounted different bulbs in 99 cent gooseneck lights. Aim them at white ceiling for Ambient soft lighting. turn them around and aim them down for task lighting. I've not found one LED which draws the wattage claimed though.
landyacht318 10/11/14 03:56pm Tech Issues
RE: Is killing batteries three times too much?

Unfortunately the charge them just before you need them mentality is widespread. Even if you try to drum it into somebody that a depleted battery needs to be recharged asap, prior experience, and more capacity than required, and perhaps hopeful of a warranty return, has the battery abuser continue bad habits. Eventually the capacity is not enough, the abuser freaks out, hopes some magical charger can restore them, and only then finds it is too little too late, and effort would have been better spent learning how to prevent the next set of batteries from following the same path into delayed undercharged death. Can't hurt to try and EQ the batteries, but you need a charger which can do this, and you need a charger for the next set of batteries anyway, and only a few automatic chargers out there can actually max out the SG of any given battery, as they are all automatic underchargers with extra special confidence inspiring marketing aimed at the ignorant Those that claim otherwise, that their average joe converter/automatic bell and whistle charger, never want to, can't, or just stubbornly refuse to employ the best tool and friend a flooded battery has, which is the hydrometer, a capable charger and a battery owner with a clue as to what a battery needs to have a respectable lifespan. In this case it was letting them sit discharged after an outing, and charge them just before needing to use them that signed their death warrant, and it is surprising they lasted as long as they did in this abuse.
landyacht318 10/10/14 10:50am Tech Issues
RE: Mean Well RSP-1500-15 Power Supply

Yeah, these things are impressive. Wait till you do not need a jeweler's screwdriver to adjust voltage. The 10 turn pot gives one a ridiculously powerful feeling. I could not believe the 22$ cheapowatt's output. If only it was able to limit itself to 36 amps, I think my improved ventilation, and improved heatsink/case mating would have kept it running for quite some time. I'm looking forward to Mex's upcoming Borg charger thread, once he gets his electrical goodie packages through customs, gets home, and has time to tinker. He'll need to post up another pic of himself wearing his magnifying glasses, smoking soldering iron in hand, with his hair teased straight up and dual disemboweled cheapowatts on the Mad surgeon's table.
landyacht318 10/09/14 10:53pm Tech Issues
RE: Mean Well RSP-1500-15 Power Supply

Fans and heatsinks and more fans, Oh my! Truth be told, if i could have my RSP limit itself a bit more, in the 35 amp range, I'd be a bit more comfortable. But the extra fans and heatsinks lend confidence, and 40.94amps is impressive, and I do not regret the 127$ spent on it, nor the $22.59 spent on the cheapowatt, may it reset in smokey pieces.
landyacht318 10/09/14 10:02pm Tech Issues
RE: Mean Well RSP-1500-15 Power Supply

I think you're right Mena. 10 to 13% is Trojans recommended bulk current, and since you have no time limits, no generator... 10% of 740 74amps 36x2 is 72 amps. Close enough, And the megawatts can go low enough to float properly at 100F. 13.8v be too high, be too high for an agm too How would you employ your existing 30 amp megawatt? I am impressed when floating with the MeanWell. The voltage holds rock steady, and my GTpower meter amp reading fluctuates as rapidly as it does when the GTpower meter is monitoring only this laptop, which is rapidly varying the amount of current it sucks up. Truth be told, the 22$ cheapowatt was awesome at floating too.
landyacht318 10/09/14 09:30pm Tech Issues
RE: Mean Well RSP-1500-15 Power Supply

I've got a few of those bookmarked already. Thanks. Kinda pricey for what it is. A kill a watt is just a few bucks more and can count current over time. I think I'd just sacrifice the insulation on an older extension cord to be able to clamp my meter over just one wire. I really don't have any other use for such a device, at this point.
landyacht318 10/09/14 06:20pm Tech Issues
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