Instructables

90 degree Laptop Power cord

Picture of 90 degree Laptop Power cord
I wanted to change the power cord for my laptop from a straight connector, to a 90 degree connector. Fear of snapping the straight connector off was my motivation for this project.
 
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Step 1: Find a compatable connector

Picture of Find a compatable connector
My HP Compaq 6720s had a strange power connector that has a spring in the middle to connect the pin. I found the correct one at Best Buy. Its made by Jensen. The power adapter itself will not be used. We are using just the supplied tip.

Step 2: Test

Picture of Test
Shove a small wire into the new connector. Now with a multimeter, you can find out which of the two prongs is the center one or positive. You can use a battery and a light bulb to do the same process.

Step 3: Solder

Picture of Solder
Now solder the center wire of your original power cable to the positive pin, and the outer ground wire to the other. I used some heat shrink on each wire, and superglue to ensure it wasn't going to move.

Step 4: Test and Done

Picture of Test and Done
Using the same wire pushed into the center of the connector, I tested for voltage. It should measure close to the voltage labeled on the power brick.

Before the final layer of heat shrink, I cut off the plus and minus molded onto the sides of the plug with a razor blade. They were labeled wrong anyway for my application. Now heat the big outer piece of heat shrink.

Lastly I used a black sharpie to finish it off. I might try some black vinyl paint by duplicolor, the sharpie is turning purple.

Success!!! Now I can sit in my favorite lazy boy chair, without trying to break the power connector on the arm of the chair.
dfc8492 years ago
I wish I would've found this long ago! I actually have an HP with the same power cord, and sacrificed a 90° male barrel jack plug from a transformer in my junk box that fit the laptop. I ended up splicing the cord very close to the 'brick' since the cord I had was long enough.
I also noticed while searching that the barrel jack charging adapter for the original Sony PSP did fit and operate sufficiently with my HP laptop. That seems to be the one thing manufacturers go cheap on, is the power cords - and aftermarket solutions are costly! Kudos for turning a poor quality product into something practical and usable.
jrey52 years ago
Smart idea! Your cord is definitely going to last a lot longer now that you have a 90 degree adapter. Thanks for sharing your good ideas with the rest of us.

http://beverlyashley.commercerocket.com
bpeirce2 years ago
This is a very good idea but does anyone know where you buy them form (locally) in your own area is it a specific place or can you get them in any local hardware shopp
bensmith8302 (author)  bpeirce2 years ago
I bought a bunch of generic power supplies and tried the different tips. Eventually I found the jensen brand at best buy fit perfect.
jdarrington2 years ago
I've had this same idea recently. The straight plug on my computer worries me so I'm looking for a 90 degree adapter. I've heard that if you go with universal ac power adapters they tend to be a bit cheaper. Is that true? Either way, what's a good brand of adapter to look for?
Derin4 years ago
I really find the effort worth it,but you could also attach the cord to that little clip on the plug and keep it like that for a bit.After you detach the clip,it tends to be 90-deg for a bit.
cflowers5 years ago
Very nice hack! Easy to do, and very useful. I featured it on The Daily Hack. Keep up the great work!

Charlie Flowers
Looks slick, My friend dropped her laptop and bent the power plug, this could be a perfect solution for her.
ikoda5 years ago
That looks really cool.
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