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 > Your search for posts made by 'NinerBikes' found 1277 matches.

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RE: eTopxizu (cheapowatt) 30 amp power supply Guinea Pig

Guess that means that running the Mega Watt in the cool of the morning is the best scenario for the caps longevity. Thanks for that find, LY.
NinerBikes 09/21/14 07:37pm Tech Issues
RE: eTopxizu (cheapowatt) 30 amp power supply Guinea Pig

Mex... my determination is that using a 17F temp as a data point, is probably a big fat outliar in the grand scheme of things of using a Mega Watt to charge a T-1275. In other words, it was a fluke, the 40 amp reading I got, and not in the Bell Shaped curve, and probably a data point, in the form of learning from it, that needs to be thrown out, statistically. I left the Mega Watt out all night, it was cold as heck too, along with the battery. I saw 12.18V that morning in that temp, another anomaly with it being so damn cold, my voltage in the battery is going to be a lot lower also. It's a data point that I think few will ever be able to use in a meaningful manner, with it being so cold that morning.
NinerBikes 09/21/14 02:06pm Tech Issues
RE: eTopxizu (cheapowatt) 30 amp power supply Guinea Pig

14.65V at batts, .95a AC draw. It's beginning to look like my attention span is going to snap like a cheap rubber band. Rough calculation would be .95 Amp draw at 120V would be 9.5 Amps at 12.0V, though you lose probably 15% in the conversion to DC, or more. Since you are at 14.8V from the power unit, probably a 6.5 Amp charge rate at 14.8V at the Power supply unit. 90 to 95 Watts worth, going in to the batteries.
NinerBikes 09/21/14 01:55pm Tech Issues
RE: Ram Eco-Diesel vs F150 2.7 TT - Davis Dam

I'd also like you to put your MPG of your TSI up against mine... have at it. The issue is amount of work accomplished per gallon, and gasoline falls far short on the miles per gallon, compared to diesel, almost every single time. Not trying to make this a gas vs. diesel p!$$ing contest. I'm well aware of the mpg advantages of the TDI vs. TSI. I'm also well aware that diesel fuel costs more and the TDI engine costs more, erasing a good part of the mileage advantage. My only point is that the nice flat torque curve that we both enjoy is a function of forced induction and direct injection, not fuel type. Now, if you wanna race, it's on! ;) Why would I even bother taking my sedate Grand touring sedan to the track? It was never designed or engineered to perform that function, all that constitutes is power drive train abuse. Which seems to be the problem with some of the posters around here, failing to understand the normal operating parameters of a vehicle and that towing duty is outside of those normal parameters, if done too frequently as a percentage of total miles driven. I paid $3.83 for diesel this week in L.A. Premium at the same station is $3.77. RUG is $3.57. Well worth the price increase paid to me, for the BTU's gained.
NinerBikes 09/21/14 11:25am Tow Vehicles
RE: eTopxizu (cheapowatt) 30 amp power supply Guinea Pig

To Land Yacht. Upon further reading, I have discovered that a 17F morning on a battery is a great way to introduce a LOT of internal charging resistance to a led acid battery. Of course, what happens then is that the battery I am using that 150 amp hour T-1275, becomes capable initially, especially with voltage drop at such temperatures, of sucking huge amounts of amps at start up. All that battery resistance doesn't help. What it does probably do is use the additional amps to make the electrolyte and plates heat quickly, so that things will charge properly with the electrolyte in the battery. What this means is that my Mega Watt may have escaped going poof this time, and that these power supply units do NOT have a method of temperature compensation at extreme temperature ranges. I had no way of knowing or predicting that I would be there in MT on the coldest day on record ever for a Sept 11th, when I turned the Mega Watt on that morning at 17 F. Frankly, it really kind of sucked being in such temps in a 3 season Travel Trailer... I didn't get running water until 12:30 pm that after noon also. My guess is that power supply units work a lot better in moderate temperature ranges... shirt and pant weather, but G string bikini or Carrhart insulated clothing weather temps, you need to reassess suitability and voltage you set at. My other thought is that the Mega Watt I have may have a limit as to Amp hours and Batteries in your bank. It' fine with a pair of Group 24's, probably a pair of Group 27's also. I would test for bulk charging on a pair of 6V GC-2's to make certain that at a 50% SOC, they do not over draw or over load a Mega Watt S35 version, for bulk charging purposes, or back the start voltage down, pre hooked up, to 14.4V. The Upper limit of Amp Hours in your battery pack needs to be defined for the Mega Watt. A single T-1275 may or may not be close to it with it's 150 amp hour capacity, and 75 amp hours @ 50% SOC. YMMV... but as Mex says... when it comes to using power supplies, think before you do, and you'd better read a lot here and learn to understand some theories, if you don't have the EE title hanging from your shingle. I don't have that "EE status", so I rely on the Pro's from Dover here on this board.
NinerBikes 09/21/14 10:55am Tech Issues
RE: Ram Eco-Diesel vs F150 2.7 TT - Davis Dam

It's a non issue, for me, peak HP. Peak torque however, all in, full at 1750 rpms, 406 ft/lbs, may very well come a lot closer to being reached at peak, without straining the motor or fueling characteristics, from 1750 rpm to 2500. As stated this is more a function of direct injection and turbocharging, not the type of fuel burned. The 1.8 TSI engine in my new VW Passat puts out its maximum torque from 1500-4500 rpm. The Ford Ecoboost engines have similar flat torque curves. Funny, my 2.0L 2014 Passat TDI SE puts out 240 ft lbs of torque, at 1500 rpms. Your TSI, while 10% less displacement at 1.8L, puts out 200 ft lbs of torque, or 20% less. K cals in a gallon of gas, when not cut with 10% Ethanol.... 110K cals, D2 diesel... 130 K cals. I've no idea what the calories per gallon are with E10, but I do know storage life of D2, if sealed, is measured in years, not weeks or a month, like E10 gasoline. I'd also like you to put your MPG of your TSI up against mine... have at it. The issue is amount of work accomplished per gallon, and gasoline falls far short on the miles per gallon, compared to diesel, almost every single time. 2014 Passat TDI SE w/ DSG Fuelly log
NinerBikes 09/21/14 09:26am Tow Vehicles
RE: For Folks With MeanMega Well Power Supplies

Mex, it's actually kind of ridiculous that they even call it a phone any more. It's more like a wireless access micro computer with something similar to Voice over Internet Protocol for a phone APP or feature. Maybe if they didn't call it a "phone" and called it a micro computer, we could get the government taxes off the backs of everyone's IP access data bill. As far as I am concerned, I don't text. Waste of time for any conversation. I can call and speak 100x faster than I can text. It's a matter of efficiency. Phone is far more efficient. Phone calls won't get you sued for defamation of character in public or libel law suits. Unless taped (duh, what agency tapes all our phone calls now), it won't hold up in the court of law. Then we have AutoCorrect for texting... Great for sheer entertainment value.. Go look up Texting Bloopers online. Text oops!'ers
NinerBikes 09/20/14 04:13pm Tech Issues
RE: eTopxizu (cheapowatt) 30 amp power supply Guinea Pig

Mex, it's about scaleability. I have always been on the lower end of the totem pole here with a tiny 21 foot travel trailer, traveling solo, no hair dryers, no electric blankets, no 600w inverter, and a single 150 amp Trojan 12V battery. My needs are unique, only to me... I don't use much, therefore I don't have to recharge much. The Mega Watt, for me, and for my purposes only, does not seem to be overdriven. Mainly because I don't deplete my battery that deeply. I want to keep it above 60 to 65% SOC before I start recharging it. I wish to get to 97 or 98 or 99% SOC daily with the value added portable solar panel system to supplement the Mega Watt. It would be rare for my megawatt unit to be overdriven, with my configuration currently. If it does go poof, I will chalk it up to being nothing more than a steep learning curve, or a shorted battery that a few dips with a Freas that I should have seen coming.
NinerBikes 09/20/14 12:32pm Tech Issues
RE: eTopxizu (cheapowatt) 30 amp power supply Guinea Pig

I look at it this way. Chemistry, and specific gravity decide on the charge rate in amps at a set voltage point. The more sulfur on the plates, the greater the ionic potential to take it off the lead plates and put it back in ionic H2SO4 solution. It's all limited by chemistry and ionic potential. No sulfur or not much sulfur on the plates, not much potential to consume any amps to do so. Low SOC and lots of sulfur on the plate, 20 to 30% SOC, huge potential to take a lot of amps. Law of diminishing returns. What I currently (pun intended) don't understand is how AGM batteries have so much more ionic potential to take huge amperage charging rates, and at an even lower voltage yet, at 14.4V? What is it that causes so much less resistance in the Chemistry? Denser acidic solution, less water? More chemically reactive?
NinerBikes 09/20/14 10:50am Tech Issues
RE: WFCO Please Describe The Operational Malfunctions

Mex, getting a WFCO for free is one thing, we know they don't go into bulk mode, but trying to use one to deal with an expensive AGM battery in bulk mode that has to have a set life of 4 years and not lose 10% charge capacity... I don't know... It sounds like it would be easier to get someone to donate you a used PD 9255 deck mount, and have a sure thing instead, that with pendant, WILL give you 14.4V right out of the box. JMHO... We know your butt is running out of peso's to squeeze
NinerBikes 09/20/14 09:55am Tech Issues
RE: WFCO Please Describe The Operational Malfunctions

The OEM resistors are SMD, right? Adding a 1/4 watt 47K should be a piece of cake. So should adhering a couple of TO247 heat sinks to those ceramic resistors. I have 48 large cells in the 24 volt bank. Six in the toad and six VR cells on the AGM. The batteries in the rig were given away as gifts to the local fishermen. Four years old and being eaten away. A 50 amp power supply works fine. Sheesh I need to get the sight machine under the knife soon I'm losing my vision. That's why I left home, to run away and get chopped up and haul back a ton of stuff. Seven power supplies including the WFCO. Maybe a quarter ton of gear, electronics. Here's a teaser. LM317 current limiting. 800ma...? For 10 watt LED chips. My rig is going all LED. Real LED's. A few fixtures will be PWM controlled, sans the 317. That should do fine, the LM317... I built a few custom head lights for my mtn biking buddies with Cree 10W LED's and the LM317 driver was a good choice. We used them for riding our mtn bikes down single track at night. Wild fun, pure instinctual riding style due to a limited amount of light. Tons of animal eye shines too, coyote, fox and bobcat, from time to time.
NinerBikes 09/20/14 09:47am Tech Issues
RE: eTopxizu (cheapowatt) 30 amp power supply Guinea Pig

Whoa whoa whoaaa hoooo Nellie. No need to insult my Screwy 31 with claims of worn out and sulfated. :) It is being working hard nightly and performing well on my current solar alternator schumacher recharge regimen. Are you past 250 charge cycles of around 35 to 50% depleted yet, out of the 500 cycles most battery manufacturers consider a lifetime? Talk to Mena about how his handles partially depleted 16L, then. I can't say it will blow, all I can say is that after taking 40 or 50 AH out of mine, nothing popped. MexWa seemed to have a lot of confidence in these Mega Watt power supply units before I chucked my $55 the way of the seller. What I can say is that if I am out of solar power... 40 mins in the morning and 40 minutes in the evening, or where I was camping, at night, right before going to bed, no restrictions, seemed to be a good use of generator time to get my battery bulked up again. Maybe my T1275 is sick, as you say. It still has a lot more in it than a single Group 24 WallyWorld at 75 AH, when camping.
NinerBikes 09/20/14 09:38am Tech Issues
RE: eTopxizu (cheapowatt) 30 amp power supply Guinea Pig

Thanks Niner, good to know I can retask my 10 turn trim pot on a Mega watt if that is what I wind up with. Mena, confirmation can't hurt but don't go through any (more) hassle for me. So Niner, you want me to acquire the 400 watt Megawatt?..... How bout draining that T-1275 to 75 amps hours from full, Set the MW to 15.0v, hook it to the battery and let that megawatt loose on it, max it out. See if it does the 33 amps for 30 minutes then 30 amps for 3 minutes then 33 amps again for 30 minutes like the claims on the homepage. If it does, I'll click place order on confirmation. If it drops to 20 amps in a warm climate, No thanks. I smoked the cheapowatt charging the screwy 31, not the AGM. The AGM was charged the night before and I moved the trim pot about 12 times in 70 minutes to keep the amps above 32amps and under 36.2 amps, and then kept lowering it slightly afterward to keep battery voltage from going past 14.7v. On the screwy 31, I set it to 14.7v, hooked it to the battery, and blue smoked it at the 17 minute mark. That kind of makes me wonder about the condition of your Screwy 31? I have no idea how this Mega Watt will handle batteries in poor, worn out sulphated condition, or on their last death bed, shorting out a cell?
NinerBikes 09/19/14 11:52pm Tech Issues
RE: For Folks With MeanMega Well Power Supplies

Ah, thanks PKnuckles, for reminding me about the adventures of screwing with Trojan +P capped T-1275s on my adventures of freezing in Montana. I have 3 nice 45 caliber holes burnt in a brand fricken new pair of Levi 550's. Those +P caps suck donkey cajones, Trojan, when trying to get inside to get SG readings, they shoot electrolyte every where just trying to pop those caps open. All over any kind of clothes you happen to be wearing also.
NinerBikes 09/19/14 11:27pm Tech Issues
RE: Windynation solar kit install and performance.

I would set the offset voltage, if you are boondocking and running about 210 amp hours of parallel 6v GC2 batteries, at 14.8V. If you are running something like car battery construction accumulator Screwy 31's or screwy 29's or a single or a pair of Trojan T-1275's, which can be a bit problematic or tempermental in recharge needs, I would go to 15.0V. If your batteries are at a 60 to 65% SOC or starting out at 12.25 or less Volts when charging, and it's past 10 am, and you just then hook the panels up and your panels are aimed directly as possible at the sun, you should see 11 Amps charge rate on the panel if you push the far left button 2x to get an amp reading. 11 amps is pretty healthy for 210 AH of batteries needing a recharge, IF, they are portable, and if you keep aiming them directly at the sun for maximum yield.
NinerBikes 09/19/14 11:11pm Tech Issues
RE: For Folks With MeanMega Well Power Supplies

Mena, what are you driving that requires high performance summer tires in Antelope Valley, where pretty much every road is straight as an arrow, except the Palmdale Cutoff? It's not like the traffic on 14 will really let you open her up a bit to see what she'll do, eh? Too much CHP and traffic, 24/7, coming down below.
NinerBikes 09/19/14 10:19pm Tech Issues
RE: WFCO Please Describe The Operational Malfunctions

Group 24... 30% SOC. 11.9V. WFCO 8955 never even budged into bulk mode. Sat at 13.6V the whole time recharging, for 4 hours. Really pissed me off. How hard is it to put back 50 amps lost? Very hard if the stupid unit won't go into bulk mode, in a reasonable amount of time off the grid. I was asking questions here shortly there after... SMkettner and a few others got me at least in the ball park. Then solar, then you and the Mega Watt Power supply. Industrial strength battery, and an industrial manual charger were my salvation to electrical independence off the grid.
NinerBikes 09/19/14 10:02pm Tech Issues
RE: eTopxizu (cheapowatt) 30 amp power supply Guinea Pig

LY, I have the same pot as your el cheapo chineseium version. Or the same letter code on it... remember verifying it last week from smart phone pics to my mega watt... was beginning to think I got ripped off on the Mega Watt, when you blue smoked yours. Especially after seeing 40 amps drop off an amp a second one really cold morning to 20 amps in 20 seconds... I was wondering if I was going to follow suite with a poof, crackle, pop. I don't own any AGM batteries, so I can't verify for you what an AGM paired to a Mega Watt would do to the power supply system. It may very well be that these are either suited better to open valve flooded Lead Acid, and the AGM requires pairing of power supplies or something more robust to pump out all the amps an AGM can take while bulk charging.
NinerBikes 09/19/14 09:53pm Tech Issues
RE: Honda 2000EU assistance

"A small heater" is vague. How about the actual watt rating of said heater. The Honda is rated for 1600 Watts. By the time you reach 800 watts, the motor should be working a little bit and come up off of the RPM's that it runs while in "Eco" Mode. Running an electric heater is a poor use of the Honda's electrical capabilities converting fuel to mechanical to electrical to thermal energy. Too may conversions with too many losses. Use propane for heating instead. We just go two new Cummins 1.5 megawatt generators at work to power our datacenter. You know what the generator contractor uses to load test them? Giant heaters. They get so hot, they killed the grass behind them. To say it is poor use of the Honday to run a heater, is like saying I shouldnt run the A/C in my car when I could just roll the windows down. Agree'd, simple resistance heaters are the best for testing load carrying ability. Using something that has big motors would give false results because of the influences of the inductive nature of the motor winding's. When I used to test aircraft electrical systems, we would use large heater coils as well. Who mentioned motors? A few halogen shop lights 500w added in one at a time to a power strip can give you 500, 1000, and 1500w load to test your 1600w Honda generator's abilities at various loads and rpms generated. Known values. Heater values by UL on most small chinese portable space heaters are off in the sticks in terms of actual watts used, nowhere near their rated values. Lights will also show a dimming effect if your voltage is sagging, another added value. I can tell you for certain that running gas free of ethanol will allow a Honda Eu1000i to pull a noticeably heavier load without the motor dying. I'd quantify it as about 50 to 60 more watts worth before the motor protests. Yes it is noticeable, at sea level.
NinerBikes 09/19/14 10:10am Tech Issues
RE: Windynation solar kit install and performance.

It looks like Windy Nation is using the same Solar 30 Charge controller that BFL and I are running. The Bulk Voltage charge rate is adjustable on that model, up to 15.0V, on the lcd display, but it's best to verify what you are getting at the battery, once the battery is close to fully charged. Good unit, I like mine a lot. A setting of 15.0V on my unit would put 15.3V to the battery. For my Trojan T-1275 sweeper battery. It's a lot like a Screwy 31 in it's voltage and charging needs. The end voltage you get at the battery terminals from the controller will depend a lot on the gauge of the wire you run, and the length of the final run from controller to battery. Keep it short and run fat wire.
NinerBikes 09/19/14 09:54am Tech Issues
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