My UPS is designed to run on 36v Dc input. Can i be able to use a single 12v battery for it to run? if not is there a way i can adjust the input power to 12V?
Posted by Patricemutua 10 months ago
With most UPS's there is electronic circuitry to reduce the home voltage to 12 or 24v to store in the battery, and then another circuit to raise the voltage back to the home voltage. I know there is always a loss when attributes of electricity are changed. This seems very wasteful to me. I want to build a UPS for my notebook computer, that I use as a home server. The power adapter for the notebook creates 19 volts but the notebook itself uses 12 - the other 7 is perhaps used to charge the battery while the computer is on. I would like to put together a UPS made of 12 volt Ni or LiFe packs - would most likely be 13 volts but I don't think that would be a problem to avoid the double switching of the power. Can anyone point me in the right direction?
Posted by haopengyou 4 years ago
I am wanting to build an Uninterrupted power supply. I was planning to use relays to connect and disconnect and the mains and battery power. N/O for the mains and N/C for the DC voltage. I wasn't sure if the relays would switch fast enough for the CPU to remain on. I loaded 2 pictures. Has anybody ever built something like this?
Posted by WWC 6 years ago
Does anyone else seem to think that a lot of the entries here are not technically mash-ups. I entered one that, the more I think about, isn't really a mash-up. Sure I combined a couple of things to make something new, but unless you consider turning two decorative things into a third decorative thing a "mash-up", I'm not entirely sure it fits this contest. I'm working on something that I think will be more appropriate, but I'm curious what everyone else thinks.
Posted by aintMichael 11 years ago
I hope this isn't a dumb question, but if I were to take an old UPS unit, remove the battery, wire a 12V lighter socket plug to the battery cables in the UPS, and plug it in to the car, would it convert the 12V DC to 120V AC while the car is running? And if it worked would it draw too much power or damage anything? I wouldn't use this to run anything with a motor, just a laptop charger and maybe a light. Thanks! :)
Posted by 500FPS 1 year ago
Hi i am trying to build a sort of DC TO DC ups for my modem/router, please look at the image attached for my project plan. I was able to find many charging circuits online but i cant understand what value relay and capacitor should be used. can any one help me with this project. Thanks in advance. http://i52.tinypic.com/v2v38n.jpg
Posted by spooge 7 years ago
Hi Guys, My first time to post a question here. I had purchase a UPS from a store. The UPS have 2 6 volts battery inside of it, the seller said that 1 of those battery isn't working anymore. My question is this, how do I replace or is it possible to replace it with 1 12 volts battery instead of having 2 6 volts battery to fit there. What will be the layout of the wirings if I have to do it on 1 12 volts battery. I tried making search of the actual item on the net but couldn't find it. Here's the pictures and the information of the UPS Information -------------------------------------------- 2009000002391 MODEL: ELITE 500 VOLTAGE: 220V / 60Hz MADE IN TAIWAN --------------------------------------------
Posted by acl_20032003 7 years ago
I have some transformer from my UPS. i want to make it welder.. watch this videos.. Do not talk about microwave ovens transformers . i don't have microwave transformer. can we make it ???
Posted by ishan udyoga 4 years ago
My town has been experiencing power dips and short outages. i bought a cheap ups but it doesn't really do the job (the PC still cuts out) but i noticed that my laptop carries on just fine (obviously because it has an internal battery) so that got me wondering. Inside the pc it's just 12v and 5v isn't it? surely you could set up a battery inside the case that works just like the one in a laptop. anyone fancy giving it a go?
Posted by the.dwarfer 10 years ago
I am thinking about buying a small generator for in around the house uses ( like charging things as power tools, phones, laptops) Because I live in a house with no power and running water. I have done some searching and found this one( Eurom GE720 benzine generator 63cc aggregaat 720 W) to be the easiest to obtain, fast shipping, cheap and it would do the trick. Now I wonder if I would need some sort of power stabilizer or UPS to prevent power peeks from destroying my precious devices. I am new to this stuff... always had the luxury of plugs in the wall so not sure what I need and where to buy it and more importantly, how do I use a stabilizer or UPS correctly Eurom GE720 benzine generator 63cc 720 W
Posted by MrLeggs 4 years ago
Hey all I'm trying to hack together a few things to make a uninterrupted power supply unit. So far, I've got a 500W power inverter from 12V to 240V, and a car battery. Unfortunately, I also need a power supply capable of pumping enough amps into the inverter and battery to get the whole thing started. I've tried an old ATX power supply I had lying around (actually several :s and I figured if I can get at least a few amps out of it it'll power ONE computer at least) but as soon as the inverter is connected to the 12V line the power supply shuts down (even when it's not powering anything at all, just the inverter ATM). It's like some sort of safety mechanism, same thing happens if you short two wires across. I know there's nothing wrong with the inverter because I can plug it into a normal wall transformer (which fried as soon as I plugged something into it because the transformer only output 1A ), and it works fine powering a computer on the battery. Anyone know of a way of overriding this mechanism, or even better, a way of hacking together a cheap and nasty 240V -> 12V 50A power transformer? Maybe splicing two power supplies together, if it's possible? 'Shady
Posted by PacShady 10 years ago
Just an open forum about UPS, the pro's/con's.... What do you use yours for? Lately Ive been thinking about getting one, then ask myself "Why?" I don't know, but still think it could be useful. Sooo, do you use it for a certain purpose? Do you buy it, just to strip it for parts? Or maybe IBLE idea's on uses for an UPS!
Posted by killarowa 10 years ago
Does anyone know of a use for those massive transformers found in dead UPS's? Please don't post replies that include "door stop" or "recycle them" because those are obvious replies when you have no answer to my question. *SMILE* I have not tried but if the "secondary" for those that is the 110v output to the plugs were hooked to 110, do the original primaries become low voltage ac secondaries? (~12v) I have accumulated about 6 of these and would like to find an electronic use for them before resorting to recycle. I have no doors that need propped open. Thanks.
Posted by stuffdone 2 years ago
It would be great if you added runner-up prizes in some or all the contests of Pro Instructable Accounts. I am new and have not seen that, maybe you already have them sometimes, if so then please ignore this. But if not, it would be really great for those of us (me) that want one yet can't afford to spend the money on one. I know it isn't much to some of you folks, but it is a lot to others. The cost of the supplies of things we are going to make, which we will spend first anyway, it is already hard to afford. Adding the Pro account as a prize wouldn't cost Instructables much if anything and there is no shipping cost plus I think it would be appreciated by many. :}. Thanks, Conny
Posted by love4pds 7 years ago
Instructables is unusable on the iPad due to advertisement redirects constantly taking you to a new page. Horrible “Congratulations!!!! You won an Amazon or Walmart Gift Card! Pop ups and redirects. Please fix! This happens in Chrome or Safari in multiple IOS versions. This has been happening for several weeks now.
Posted by Frankincell 10 months ago
"The Star Wars kid has gotten a lot of shite over the years, mainly because he's not a professional. He simply didn't have the training necessary to pull off that fight sequence. On the other hand, there are lots of professionals who do have the training and simply lack the means to wield it. I'm talking about people like Aragorn, Captain Jack Sparrow, and Westley. If somehow you could only put a lightsaber in these fearsome warriors hands...Ugh, blogging. What am I even talking about? Let's just be ourselves, you guys. I found a bunch of clips on YouTube where people took fight sequences from other movies and overlaid lightsabers on top of them using magic, and they are hilarious, and you're gonna love it."Link
Posted by Tetranitrate 10 years ago
On January 20th there will the first meeting of T-Exchange, a Moray-based (Scotland) hack-group. Anyone interested in making stuff or being creative is welcome. You can find us on Facebook (search for T-Exchange) or at http://www.t-exchange.net for more information! Its a long shot but somebody might see this :)
Posted by termcc 6 years ago
I have found a simple yet annoying mistake that game developers seem to love to make. Before I go on, lets get this straight: Parkour is a method of movement focused on moving around obstacles with speed and efficiency. Originally developed in France, the main purpose of the discipline is to teach participants how to move through their environment by vaulting, rolling, running, climbing and jumping Free running or freerunning is a form of urban acrobatics in which participants, known as free runners, use the city and rural landscape to perform movements through its structures. It incorporates efficient movements from parkour, and adds aesthetic vaults and other acrobatics, such as tricking and street stunts, creating an athletic and aesthetically pleasing way of moving Okay, so the main difference is that free running is pretty much parkour, except it involves flipping, tricking, and is just all around more free; hence FREE running. But here's the thing I made this forum topic about. In the Assassin's Creed series, you climb up buildings, jump from one to another, and that's pretty much it. Scaling, jumping, rolling, and that's all there is to it. Yet they call it free running. You don't flip or trick or anything, therefore isn't it parkour and not free running? Another game where this mistake is made is in Tony Hawk's American Wasteland--but there's one difference. In THAW, you do front flips, back flips, wall flips, you climb buildings, scale buildings, etc. So it should be called free running, right? Well tell that to the guys over at Neversoft, because they call it parkour. Why? What is it about these developers that make them blindly call something one thing, when it's actually another? Do they even think of looking at sources? Have YOU seen this mistake in OTHER video games? Tell me your opinions on this!
Posted by Flumpkins 7 years ago
Keep signing up for instructables newsletter but don't recieve it
Posted by bluscreamofdeath 9 years ago