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I'm not a moron. I have worked with electronics since I was a small child. The only thing I am not familiar with is lead acid charging voltage, because lead acid batteries are obsolete. (Thus a large battery I have no use for) My home is powered by a solar system I designed and installed...

I happen to have a 12v, 22AH SLA battery sitting around, and it's just going to go bad if I don't use it for something. I want to make a 12v DC UPS to power my router. The concept is very simple, I charge the battery with a DC-DC power supply powered by a wall wart which allows me to adjust the...

You mean like...a BATTERY?! *GASP* Perhaps in a car?!!!?? Where might somebody find such exotic things?! Everybody knows small computers idle at 450 watts right? Shit my lawnmower puts out more amps than that... Keep your geek pants on, I was just making a suggestion. Clearly I was not...

Yeah, my biggest concern is the caps, though they seem high quality and mounted nicely with a bunch of silastic smeared all over. At $20 shipped I think I'll get a few more as spares, it came with a nice set of ATX cables also. I'm guessing somebody replaced these after a period of time for...

+12v - 38A +5v - 30A +3.3v - 10A -12v - 0.5A Combined total 456W MAX Also says "Date code 0935" - anybody know what that means? Probably not for the latest and greatest mining rig, but not bad.

Alright, I finally had a chance to hook it up to the batteries. It works! White-positive black negative. Green wire plugged into building ground. Anybody that needs a good DC power supply should consider trying these, they're cheap on ebay and better quality than a lot of those cheap chinese DC...

Thank you for the info. I won't be able to power it up for a couple days but I will post the results. The ground wire is indeed floating.

I'm not very good with discrete electronics but this is as detailed as I can get. In the top left corner the two pins you see are the chassis ground. The 5 pins about 1" below that are the white wire on the outside and the black wire on the inside, with the fuse on the white side. The input...

Did you bother to read any part of this thread?

I expected others who know about power supplies to help, and that's exactly what they are doing. This is not a major mystery. I suspect there are people here that work in the industry and may know exactly what I am talking about. There is a 50/50 chance it will work if I randomly pick wires...

When you have nothing of value to say, it's generally best to just hit the back button. This is a cheap surplus power supply, not a nuclear generator.

Another clue - there is a 20A glass fuse on the input, tied to the white wire. Do they put the fuses on the positive side in -48v stuff?

I'll try to do that tonight. Can't see anything from the top but maybe if I unscrew the board again.

Nope, totally blank, except for the label that says -48v. I checked the green/yellow with DMM, like I said that touches chassis ground, the black and white do not touch the ground or each other.

I am well aware of what they are for. They are used everywhere in the telecom industry where absolutely everything (even the air conditioning) runs on 48v DC which is provided by giant batteries any time there is a power interruption. It's a facility wide UPS. It makes perfect sense to use in an...

I have a power supply that was removed from some kind of rack mount telecom equipment, rated for -48v DC input. (-38 to -60) Otherwise it appears to be a normal ATX style power supply. I'm going to be using it with a computer running from a 48v battery. How do I hook this up? The negative 48v...

Wow. You are a special kind of weirdo. You clearly have not understood the question, please stop posting here. You are not helping. You don't need to make 40 posts in a row. I am not concerned about being tracked, as I explained I PREFER that, this has nothing to do with the question I asked -...

Oh for christ sake! HOW are you doing that? If you just came here to brag about it nobody cares. And I'm not here to justify my subscriptions to you.

And how is that? Did you not understand the point of my question?

And what is it you are doing to "customize to your liking"? If I didn't have an account then every single possible recommendation would be random, and most likely something I do not want to see. (The "popular" trending BS is absolute trash) Even though their current system has serious flaws...

Youtube has become my main source of "TV" these days. I like it better than cable but it seems like they still try their hardest to drive me insane. I pay for youtube premium and generally use it from a Chrome browser in Windows. Two major things driving me insane: 1. Can I force the quality to...

I can take away their internet at anytime without notice or reason. I can also end their tenancy with 30 days notice. Honestly if somebody is causing a problem here, I'd be more likely to get rid of them entirely. This is a landlord friendly state. ;) We're also talking about 4 people, not an...

Like I said, recommended but not required. People are dumb, and as a result some blatantly obvious things need to be put in writing. This is why a lease is 5 pages and not just a couple of lines. :)

I don't currently have any equipment. They just installed the fiber a few days ago (not activated yet), previously the best we could get was DSL at about 3-5mb. LOL! The ISP will not allow more than one connection on the property, and they have made it abundantly clear they don't care what I...

Thanks for the info. Seems like that should work. (y)

Not asking for advice whether I should or shouldn't. Bandwidth hog is not going to be an issue, if it ever became an issue I can either take it away or kick them out. Nothing to do with responsibilities and liabilities. Tenants have to follow the rules I set, if not, they start packing. Let's...

OK, I admit it, I suck at internet security. o_O I have a rental property with 3 units, I would like to be able to provide them with internet access. I have a 1gb fiber connection available. I want them to each have secure access, not like an open/shared WIFI network. I would like to provide...

Windows 10 is more or less free now. (legally) All you really need is a legal Win 7 copy, you can still upgrade for free. Of course these are incredibly cheap if you don't already have one. This is a loophole that they may not be advertising, but are obviously not hiding. And then you've got all...

No, that's not how that works. What you think you see is not what I am talking about. His posts would not disappear unless I ignored him, but unlike some others I am more than happy to hear, discuss, and respect other's opinions, but not belligerent rants that serve no actual purpose.

By all means, please indulge us with your expertise in this issue. You really have no dog in this fight if you don't have an opinion on the topic to share. Who is hiding from bad words? If you got to know me you would realize I could make a sailor blush. That's how I speak to my own mother. It...

...says the person throwing a profanity filled tantrum. *sigh* You just can't handle people that have opinions that differ from yours. And I will repeat: If everybody actually used 1gbps, the entire system would crash. The providers know this as a fact and base all of the multi million dollar...

How could any of that have ANYTHING to do with the government running/looking at your internet? People totally confuse the issue of every random person seeing your activity and the government, two totally different things. Not to mention it is quite a stretch to assume that just because a city...

Gives mom a few extra minutes to bring a hot pocket down to the basement. Silly my sitting here watching Netflix in high def streaming with no delays over a cell phone from a rural tower. I'm like a cave man!

Not sure what you're so worked up about. I'm welcome to have my opinion just as much as you have yours. I never said yours was wrong. I'm not stupid, I know how police work. Boy the nerds sure get worked up about their internet connections!

Where did I say I was against it? I just said I can't comprehend why you'd need it or how you'd use it. Somebody has to make fun of the geeks creaming their jeans over an internet connection... And don't act like for a second this won't get old in just a few years and you'll want the new 10gb...

Sure, faster than 20mbps is fine. 1gbps is almost unusable...in most circumstances the server you are downloading from isn't going to feed you that fast even if you have the connection on your end. It's for bragging rights.

If that makes you feel better...you can pretend that. You suggested if I am looking for the cheapest price then it is not at Amazon, because they charge sales tax, totally oblivious to the fact that everybody charges sales tax. They are doing you a favor by taking it up front, that makes doing...

So the feds have been going around posting private pictures online? When did this happen?

I'm betting it's just a bunch of nerds that want bragging rights. How many people actually watch multiple 4k streams at once? And if it's for the kids they do not need 4k. Most people cannot tell the difference between 4k and 1080p...

No special deal. No contract. Just a lower price. At my last check my phone has used 63gb of data, and that's only 12 days into my cycle. I don't have to take your word for it, or look up any statistics...like I said, I just switched and they are cheaper. I got nothing special from Verizon that...