In this project I will show you how to convert a battery from an old laptop into a power bank which can charge an ordinary phone 4 to 5 times with a single charge. Let's get started!

Step 1: Watch the Video!

The video gives you a basic overview which steps are necessary to create your own power bank. But I will present you more detailed information in the following steps.

Step 2: Buy the Necessary Components!

Here is a list of parts you will need for this project:


1x TP4056: http://amzn.to/1SRDXZc

1x Micro USB Breakout: http://amzn.to/1NJd4if

1x Toggle Switch: http://amzn.to/1SRE1Zb

1x XL6009 Boost Converter: http://amzn.to/1PNqz8a

1x 5mm Red LED: http://amzn.to/1SRE9HY

2x 5mm Green LED: http://amzn.to/1NJdftY

1x 2.2kΩ Resistor: http://amzn.to/1PNqL7A

1x Female USB Port: http://amzn.to/1PNqKAt


1x TP4056: http://amzn.to/1NnD3hB

1x Micro USB Breakout: http://amzn.to/1PNqUYL

1x Toggle Switch: http://amzn.to/1KiXL53

1x XL6009 Boost Converter: http://amzn.to/1PNr1TX

1x 5mm Red LED: http://amzn.to/1PNrrd5

2x 5mm Green LED: http://amzn.to/1PNrvcL

1x 2.2kΩ Resistor: http://amzn.to/1E9uEhN

1x Female USB Port: http://amzn.to/1PNrxBt


1x TP4056: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Micro USB Breakout: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Toggle Switch: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x XL6009 Boost Converter: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 5mm Red LED: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x 5mm Green LED: http://rover.ebay.com/rover/1/711-53200-19255-0/1?..

1x 2.2kΩ Resistor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Female USB Port: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...


1x TP4056: http://s.click.aliexpress.com/e/bYFYV7imu

1x Micro USB Breakout: http://s.click.aliexpress.com/e/B66yb2vju

1x Toggle Switch: http://s.click.aliexpress.com/e/AEEY7EyfQ

1x XL6009 Boost Converter: http://s.click.aliexpress.com/e/vbi6YvRzR

1x 5mm Red LED: http://s.click.aliexpress.com/e/ByJ2rzrbE

2x 5mm Green LED: http://s.click.aliexpress.com/e/vRfUzjeU7

1x 2.2kΩ Resistor: http://s.click.aliexpress.com/e/vFqzvVNna

1x Female USB Port: http://s.click.aliexpress.com/e/YnUFiyfqz

Step 3: Time for the Wiring!

Here you can find pictures on how my wiring looks like. Simply recreate it inside your case and everything should work just fine.

Step 4: Success!

You did it. You just converted an old useless laptop battery into a power bank.

Feel free to check out my YouTube channel for more awesome projects:


You can also follow me on Facebook, Twitter and Google+ for news about upcoming projects and behind the scenes information:



<p>Hi, just wondering if the TP4065 is supposed to get hot when charging batteries, the red led lights but I unplugged it when it started getting hot. I am using 13mm&sup2; wire and genuine Samsung 2600mAh 18650 lithium cell. Thank you.</p>
<p>Oh, I am also using 3 of these cells in parallel, which were also in parallel in the laptop I salvaged them from.</p>
<p>I made it and it works well. but i want to know how i can draw more current out of it to charge it faster.?</p>
<p>where you get the case?</p>
<p>Hi, how long does it take to have the full charge?</p>
<p>Can I add multiple USB ports?</p>
<p>Coud i use my old tablet battery it has 3.7v and 4800mAh?<br></p>
Bro how many amps does it give as output to mobile phone ?
<p>Omg you answerd me </p><p>If you will read my comment again i want you to know that you are awsome and i love your videos<br>And thank you :D</p>
<p>Hi, </p><p>I want to add LED's but I dont have 2.2k resistor.</p><p>I have only 220,1000 and 4700. If I add 1000 + 1000 + 220 would it approximately work like 2.2k one?</p><p>Ps. Except the LED's everything is working. Thanks Scott &lt;3</p>
<p>cant u just buy a 2.2k bcs that will mess up a lot of ur cables</p>
<p>hi,</p><p>can i use the battery while i am charging it?<br>i want to to make a portable Bluetooth speaker with an old speaker i have and i want to add this battery to power it up.</p><p>thank you<br>lierez.</p>
<p>and another question:</p><p>does the xl6009 boost converter can make it to output about 12 volts?<br>my bluetooth amp is TDA7492P and it works with 8~24 volts.</p><p>i will pass the usb out port and connect the battery straight to the amp.</p><p>thanks again </p>
<p>Yes, the booster can output 12 volts</p>
<p>Hi,</p><p>There is some circuit like the TP4056 that can handle 12v?</p>
<p>thank you!</p>
<p>Also if I added a solar to charge it could i just wire it into the batteries.</p>
<p>Hi Scott I was wondering before I made this if I can recharge the batteries and if I can how so.</p>
<p>hi from where i can find this box sorry for my bad english</p>
My charger doesnt have the out terminals, it only has the input and bat terminals. What to do?
<p>Buy the latest version taht looks like this: https://goo.gl/OotPh6</p>
<p>hey <a href="https://www.instructables.com/member/GreatScottLab" rel="nofollow">GreatScottLab</a> what gauge wire did you use?</p>
<p>Hey!</p><p>How would i go about charging the laptop battery as is, because the one i have has the right properties for my project but i don't want to put it in the laptop every time i need to charge. What can i do?</p>
<p>And sorry for my English...</p>
<p>I have got battery from laptop, and this battery is: SF US18650GR</p><p> T G5149OD06J.</p><p>I can&acute;t find the informations of this battery. Where I can to find it?</p><p>I don&acute;t know, if this battery from laptop acer is somewhere...</p><p>Thank you!</p>
Hello i was woundering where the case came from thanks. (Sorry if this question is dumb but im new at this)
I have one question regarding the power bank what if the phone is fully charged and still the phone getting power won't it damage the phone.<br>
<p>No, if you leave your phone in the wall socket when it's charged it won't be damaged either, and phones also have protection circuits</p>
<p>Hi, are you using 2.2 kohm resistor?? Isn't the band color red red red? Why is your resistor different?</p>
<p>Hi, i made this project. But i have little problem , charging port gives only 0.5A , how can i boost it ? If i can .</p>
<p>Hey, good work! But still I can't figure out why do You use usb break out board while there is the same usb connector on the charging board... Why is that?</p>
<p>Hey !</p><p>Some charging board are mini usb and not micro usb, if you want to use your phone charger to charge the power bank you will have to add a usb breakout :D</p>
<p>So IT isn't the same connectors... Thanks, I didn't notice :D</p>
<p>Great video , I do have a question although. I have a 11.4v 3780 battery pack scavenged from a dead laptop ( motherboard fried due to liquid spill on keyboard). These are the flat batteries we see in cell phones. A battery like this should be fine for this circuit or should I be adjusting anything? I will be adjusting the boost converter to put out 5v</p>
<p>that should be fine, it won't be able to give as many charges since yours is only 3780mAh but it should still work </p>
Can you use bateries bought by one in series for this project?
<p>yes, however in series would not let it be able to supply as much current, and since we are only going for 5v there isn't much insentive I would say ( unless you want to skip having a boost dc converter ) but as long as you don't get do much voltage everything should be fine! </p>
<p>Hello Scott, a great fan of yours, but I was wondering if there is any way to transform any of this current into higher / lower values, and if you could tell me how, / direct me to something that tells me how to. Thanks again, and great job keeping up with everybody on instructables btw </p>
<p>sorry, I'm not the great Scott :D but I may be able to help you. First off, normally on the boost converter where he changes it to 5v there is a pin usually where you can adjust the current you desire, however even if yours does not have this, you can always attach a potentiometer to the output of the boost converter, and using the potentiometer the current will change based on what you set it to</p><p>Hope it help! </p><p>-Nate </p>
<p>Hello Scot,</p><p>Once again thank you for all your fantastic projects, especially your descriptive descriptions on every aspect, every theory, turn by turn.</p><p><strong><u>Regarding the Laptop PowerBank:-</u></strong></p><p>Some engineers, remarked that the PowerBank did not charge Apple devices, viz: iPhone/iPad mini etc.</p><p>Some commented to add 2X10K on Data lines.</p><p>i did not see a response from your side. Perhaps, you must be busy with ever so many projects in your agenda and your mind. That's appreciable. </p><p>When you get a little bit of time, please explain elaborately, as to how the above issue can be overcome.</p><p>Thanks once again.</p>
<p>Simply short the data pins of the USB socket to activate fast charging. </p>
<p>Great Scott how do I do that ? </p>
yes Scott I tried it but it doesn't work
<p>Danke sch&ouml;n.</p>
<p>Hello Great Scott , I have two questions about the poerbank. </p><p>Can but two USB output ports </p><p>My second question is if it possible to make one USB output 2.1A</p>
I even shorted the data pins of the USB but still can't charging Apple devices
Hi, Yosuko some Apple devices needs to 2 volts on each of the data pins to charge.
<p>could you charge 2 phones by adding another usb port?</p>
<p>is there diagram for all connections, or something clear picture of connections</p>

About This Instructable




Bio: Awesome Electronics Tutorials, Projects and How To´s
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