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Outlets of the Future aka in-wall USB Charger

Step 5Connect the power and attach to the wall

Connect the power and attach to the wall
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DO NOT work with live wires, and do this at your own risk.

There is too much liability to explain how to wire an outlet, do this project without disconnecting the outlet from the wires,   keep track of how it's wired when you take the wires off, or have someone who knows how to do it, do this part for you.

once the power is connected, use the screws that came with the face plate to attach the charger to the electrical box in the wall.

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26 comments
Mar 29, 2011. 7:42 AMjgeekw says:
Why not design an iPhone cable with proper regulators/resistors to connect back to an existing telephone line? They put out 40-70 volts of electricity.
Jun 3, 2011. 4:46 PMzgr95 says:
the telephone company really doesnt like it when you run off there batteries cool idea though but you wont get incoming calls cause the line in your house will appear busy
Feb 11, 2011. 7:08 AMCasCom98 says:
Totally irrelevant, but I have the same wall phone. And your right, the thing has taken years of abuse.
Nov 19, 2010. 5:41 PMrrostie says:
What I would think would work better and be more functional is to wire it to a proper USB hub, with a third USB "output" maybe a square USB port, that you can connect to a computer so you can use it for something other than just power.
Feb 8, 2010. 4:32 AMSchmal says:
Kind of random but you have the same iPhone case as me! This is an awesome tutorial, can't wait to get started.
Dec 14, 2009. 5:53 AMhamstrerfan says:
Yuor wall color is nice!
Dec 9, 2009. 1:18 PMmario8 says:
 I love your wall color!!!!!
Dec 13, 2009. 5:55 AMmario8 says:
 me too with are wall color :-)
Dec 10, 2009. 1:47 AMthe_crikster says:
Buy the parts yourself and get an electrician friend to help you! Then buy him/her a drink afterward.
This is a nice idea but it's just not worth accidentally frying yourself, your loved ones or burning down your house through faulty wiring.


Dec 11, 2009. 3:58 AMthe_crikster says:
Sorry that's a very British thing to say isn't it. Cook them a meal, buy them a gift, whatever....
Didn't know they could lose their license, so I probably wouldn't ask them after all.
And I know lots of people have said the same thing. just couldn't resist myself.
:)
Dec 3, 2009. 10:19 PMAmyLuthien says:
If this is unsafe, I'd love to see an alternative written by you guys that are saying this is the wrong way to do it!  :D
Dec 4, 2009. 10:40 PMlampare2000 says:
here is just one source for the correct way to do it, I'm sure there are others. http://www.datapro.net/products/usb-wall-plate-dual.html

Dec 5, 2009. 12:32 AMAmyLuthien says:
The point I was trying to make was there are a rather lot of people ragging on the author, who took the time and effort to try and teach us something.  If they think he did such a bad job, then perhaps they should make an ible and show us how it's done.  Personally, I just plug these devices into one of the front USB ports I built into my computer, but that's just my solution.  ;)
Dec 5, 2009. 1:44 AMlampare2000 says:
yes, but but my point was not to rag on the author. It was mean to warn him of some potentially very serious consequences of his idea, as well as to address the question/comment made by one other site viewer, and also forwarn anyone else who might be considering doing the same. I have no desire to do instructable on how to do what I suggested step by step, since I like you, see no reason for having it in the first place. Since you need a cord in your hand anyways in order to plug it into the "outlet", why not just leave the tiny charging unit right on the end of the cord like it was intended, that way you can in fact plug it into any outlet, anywhere!
Dec 5, 2009. 2:09 AMAmyLuthien says:
I never said you were.  :)
Dec 6, 2009. 9:08 PMjhdesynz says:
Hardly anyone that is against doing this for code reasons has "ragged" on the author, most said its a great idea, just not the way to do it.  You can't build an instructable for how to do it correctly because you can't UL list something you've made yourself.  You can't wire anything that is not UL/ETL listed in your dwelling or your violating safety regulations.  Non-UL products are ONLY for commercial use and then only under appropriate circumstances.

Lampare2000, the USB faceplate you linked too wouldn't work either as that doesn't eliminate the transformers being inside the wall box and the electrical outlet being mounted to code.

http://store.fastmac.com/product_info.php?products_id=458  - This is the only safe way to do what is done in this instructable, will cost around $10.  But you'll have to wait till next year before they're available.
Dec 6, 2009. 11:51 PMlampare2000 says:
If you looked at the outlet plate I gave the link to..AND scrolled down to the cables shown below it..AND read my other post where I pointed out how to do it safely by locating the plug in transformers elsewhere such as in the basement, then routing the cables from the regular outlet where you plug in the transformers , up through the wall to a dedicated work box with the outlet plate I gave the link to.. you would see that it is to code.
 Also.. there is a difference between something you make, being UL listed, ( which you are correct, you can't really do that ) and violating NEC code by using a UL listed device in an unapproved maner as part of perminate premise wiring, thus violating NEC, which is what I was pointing out to the one commenter who was saying there was no code violation.. which there obviously are several.. but the point being, more importantly, that its a safety issue. If one thinks they do not get warm enough to start a fire, they are wrong, since they do not have to get hot enough to burst into flames to start a fire.. only get hot enough to slowely degrade the plastic they are made out of.. then the internal support of the device begins to fail, by softening, allowing for potential of direct short circuiting of the device, and THAT causes the fire. So in an enclosed confined space, a " little warm" can be WAY TOO warm.
Dec 7, 2009. 10:35 PMjhdesynz says:
i did not notice the other post, but that would be a viable alternative, would prob still run it in conduit even though its low voltage.

Yes, I was agreeing with you the NEC part.
Dec 4, 2009. 6:01 PMlampare2000 says:
if you really want to have a usb charging outlet instead of the convenience of one you can plug in anywhere which I think is way handier.. the only " safe" allowable way to do it would be to sure an outlet oh say in the cellar under where you want the charging port to be.. plug the transformers into it.. then route usb entensions that are rated for in wall use.. up through the wall to a dedicated ( it can be a regular work box or a low voltage rated type ) box since this is all low voltage and approved usage its not a problem. There are even dedicated usb outlet plates out there, just a little hard to find.
Dec 3, 2009. 7:23 AMlampare2000 says:
besides the code issues with cutting the mounting tabs off of the receptical and shoving it further back into the box.. there is the serious issue of heat build-up as well. The plug in usb chargers are designed and ul rated for unconfined use. They are also always on when plugged in.  So, in this application you are taking two of they which will be on all the time, placing them right next to each other, and then sealing them into a confined space.
Besides being in violation of several code issues here... its just dangerious.
Dec 4, 2009. 1:45 PMcaveqat says:
Which code, mechanical code? probably not even thought of in the electrical code, i don't rember seeing that there. So dont cut thee tabs, and just fold them back. Create yiour own tab from some sheet metal. The several wall warts ive used generate a little heat when in use. But you can still hold it in your hand.
Dec 4, 2009. 5:46 PMlampare2000 says:
the electric code covers wayyyyyyy more than you think.. cutting those tabs off is altering the device, making it no longer as it was tested for its ul listing. the device is to be mounted securely, by those tabs, not shoved into the box. They go so far as to spell out how many wires can be in a work box depending on the cubic in size of the box.( which allows for the outlet itself)  therefore you are violating article 300 under box fill. You are also violating article 4oo under corded devices by using a corded device ( the plug in transformers are considered corded devices meant to be plugged in ) by making them part of perminent premise wiring. You are likely violating code as far as outlet spacing since you in effect removed an outlet.You are violating article 100 which defines materials being used only for their intended usage. You are violating the UL white book codes by nonallowed usage. these also violate terms ( in fine print but they are there) of your home owners insurance.. meaning once you burn your house down, they won't even have to pay you for it.  Need I say more.. don't believe me.. call your local electrical inspector and ask him.. call you home owners insurance co and ask them. Don't take my word for it.. but to anyone else considering this instructable, I'd think again, and since you need the cord anyways to hook up the phone to charge it.. wouldn't be a lot handier to just leave the transformer on the end of the cord so you can plug it in anywhere you want..and still plug anything you want into the outlet on your counter as well.
Dec 3, 2009. 7:27 PMTodd_Stephenson says:
Codes and safety....MEH!....If ya ain't doin' it dangerous ya ain't doin' right! The heat these little gadgets put out wouldn't be enough to ignite . I would be more worried over an extention cord that was used to reach a table/ reading lamp or even a fish tank filter , some pull alot heat at the plug without the use of an extention cord.
  As for the "green" thing, humans are responable for only 3% of the worlds "green house gasses".Its true, look it up.Trees come in first place. Should we stop them from rotting or just cut 'em all down? As for for energy consuption (except for just saving money)...MEH..., the US will always be dependant on foriegn oil because it makes far too much money for the congressmen , senators, presidents and other corrupt rich people of this country.
 That being said, I think it's a nifty idea man, I'm gonna make one!
Dec 4, 2009. 4:43 PMconrad2468 says:
screw that, if you watch fox, all of the climate reading data has been "fudged" (were actually experiencing a cooling trend) so tbh i dont think a couple more pounds of CO2 per year is going to matter!
Dec 3, 2009. 9:28 PMcarvin127 says:
Photosynthesis produces far greater amounts of oxygen than the small amount the plant requires to produce its energy needs. During the night, plants do actually uses oxygen they have left over from the daylight photosynthesis, or take oxygen from the air surrounding the plant to meet its energy needs, however, it is not nearly the amount of oxygen  that an animal (or human) needs over the same period of time, not to mention motorized vehicles which consume huge amounts of oxygen in order to enable combustion with any efficiency. (I'm a mechanic, I know) Just travel to any major city, and you can actually see the effects of automobile emissions.

Human activity never ceases, unlike nature, which has natural breaks in it's cycles that allow for recovery.

There's a good resource at http://en.wikipedia.org/wiki/Greenhouse_gas for a better understanding of greenhouse gasses, and the roles they play in our atmosphere.

I agree with you, in that, we will remain dependent on foreign oil for a long time to come.  Greed begets greed, and unfortunately our government is a veritable "black hole," drawing everything into itself that isn't bolted down. I just wish they'd suck in a portion of those pesky greenhouse gasses. :)


Dec 4, 2009. 1:35 PMcaveqat says:
I don't know if i would trust wikipedia, or Anglica, or NASA any more on green house gasses, after reading the e-mails and their papers.
According to my old prior training, you sound right on the first, but not on the last. Remember carbon dioxide is heavier than air, to keep it near the plants and us. That stuff don't harm us until its over a certain percentage, but we are long from there. the more we keep the earth green, and allow the green to be used for foodstuffs and not for fuels the more people we can sustain.
For food production we need to move away from petroproducts, and to a electric/solar or whatever mover. Like an electric tractor. Which means more infrastructure, more jobs to maintain the infrastructure, which we are not doing. I don't and won't see general motors, or volvo making roads for us, or con electric putting wires in to help us without "Big Government".
Human activity, bad, ? become compost for that. Human activity creates the oppertunity for others to progress and for civilization to move.
Dec 3, 2009. 10:56 AMicerabbit says:
Same thoughts regarding code & safety. 

It is a neat idea ... but that's not a safe way to do it. 
Dec 3, 2009. 11:49 PMkuhsay says:
I'd like to add:

It's illegal to work with electrical outlets and stuff if you live in an apartment complex unless you are a licensed electrician (in the states anyways).  If this causes a fire, you can be sure the fire department will find it and you will be held liable, in addition to being responsible if anyone dies.

It's a cool idea, but not one I would recommend.
Dec 3, 2009. 11:14 AMcivicturbo says:
Ok well I agree with some of the cautions here Get off the guys back, he was nice enough to take the time to share this with everyone.  I simple word of caution is ENOUGH! You don't need to be D!cks about it.  Its not green??!! I would love to come over to your house and show you what a Hypocrite you are MATTNOKS In your house do you have Switched outlets on ALL wallwarts, NO incondecent bulbs anywhere, Programmable thermostat set to enegy star or better, Extra insulation added to all exterior walls, Vehicles that all get min. 30/39 milage Do you have all that? I doubt it, I seriously doubt it.
Sorry for the rant, I can't stand it when people are over the top conservatives!
Good job to the author very inventive! could be modifyed for the safty freaks but good job, I like it.
Dec 3, 2009. 1:31 PMmattnoks says:
That was a rant, and a pretty stupid one at that.  The author is providing a way for people to burn down there houses and people are probably going to try this.  On top of it being a bad idea I simply mentioned its not very green.  I'm not rich so no I don't have a 30/39 car but I did they best I could with the money I had.  I do have fluorescent bulbs everywhere.  I do have a programmable thermostat, the other stuff requires serious bucks, I wish I could do all that. 

The main point is its very very unsafe.  The second minor point is its wasting electricity.
Dec 3, 2009. 11:20 AMjridley says:
I have most of that.  My car only gets 26 MPG, but I rarely drive it, I ride my bike 11 miles to work a day.  I only use the car when I need to go more miles or carry heavy stuff or other people.

I'm personally not that worried about tha tenth of a watt this would draw, but I am very concerned that it's not safe, and it also violates electrical code at least two ways, which will invalidate your insurance if you ever have a fire.
Dec 4, 2009. 1:40 PMcaveqat says:
Which code did it violate, None of any which I was trained on. He didn't modify the socket, or modify the wall wart, the only problem is the depth of the box, which may "pinch" the wire. But careful assembly would take care of that.
Dec 4, 2009. 2:24 PMjridley says:
The one I know for sure is putting low voltage wiring in a mains box.
Not providing proper ventilation for the adapter is probably not a good thing though possibly not a violation.
The outlet is not properly mounted, it's just floating there, that is likely to displease an inspector, though it may not be specifically against a code (though I wouldn't be surprised if it was).
Dec 4, 2009. 4:47 PMcivicturbo says:
Having done low voltage wiring for a company who watches code stuff, the sharing is a nono but that is assuming there is NO divider. Example: a double gang box behind a wall mounted flat screen with a out let on one side and a hdmi port on the other. This would require a decora outlet, decora HDMI insert and a Decora double gang wall plate. The problem with this although it looks nice is that the HDMI cable has to pass into the shared space of the outlets wiring. So that is the HI/LO voltage combination violation. The soultion is that Carlon blue boxes have slots in the top and bottom at the center and you can buy (although many stoes are bad about carring these) a divider that is orange if i remember to put in thet center. Now its legal. This is the same reason the electician can't run the T-STAT control wire for your A/C outside in the "whip" they use to connect up power. Which then further makes them buy better wire thats rated for outdoor use/Sunlight. 
  Now being as the wall wart is self contained and sealed to the outside plate that should qualify as the divider so long as it can't come off from the plate before the plate breaks, The outlet floating around thing could be solved by beding at 90 deg. and riveting a car audio backstrap (3/4" wide x 9" long bendable metal) to each tab and bending again at the opening of the box, then trim to length with a metal shears. IF there is clearance for this top to bottom.
Second option is the solder 14-18 gauge wire directly to the plug prongs and heatshrink tube each prong individually. NO electrical tape as substitue. This eliminates the oulet. You now have a whip to wire nut to.
And finally if this is a switched outlet your all green and its better because you have control over the draw.
Finally using option two you now have a prototype item you can show a company and have they build it in a ONE peice plastic mold. Ask them to add a front side push button for power and a cute blue LED light and you have a product that could probaly go to market  for $14.95-$19.95 and make 200 margin points (100%) markup. Have the chinesse make it and the
profit would probaly double again.
If I knew the right people I would do this instead of typing about it.
Thanks for reading all this HA!



Dec 1, 2009. 12:57 PMgeoboy says:
this is really cool, although i would like to see a picture without the plate on but installed in the wall. I only ask cause this may be a code violation. Am i correct in assuming that the duplex receptacle is recessed in the wall somehow? The picture in step 4 shows the receptacle spaced away from the plate about a 1/2"-3/4".

The front of the device box whether its a single gang box or a 4x4 with a single gang-ring should be atleast even or atleast less than a 1/4 inch recessed from the front of the drywall. The receptacle cannot be recessed inside the junction box. but should be mounted on the surface of the drywall.

Granted this is very cool but being an electrician this raises some red flags for me, especially if people who know nothing of electrical are making this modification. I dont mean to come down on anyone, im just looking out for the well being of others.
Dec 3, 2009. 8:39 AMmattnoks says:
He didn't show a picture of of it in the wall because 1 its all epoxied together and 2 it would be scary as hell to see the potential fire hazard.
Dec 3, 2009. 8:12 AMmattnoks says:
I second what others have said above, this is not the way to achieve a usb outlet.  Its ungreen and dangerous.

The mini usb chargers are only slightly bigger than a plug anyways and you can use them at any outlet so I don't really see the advantage here. If there was a how-to on how to add an extra usb port to an existing standard outlet, I would be interested.

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