DIY Laptop PowerBank

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Introduction: DIY Laptop PowerBank

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

In this project I will show you how to create a Laptop PowerBank. It mainly consists of a Li-Ion battery pack and one buck and boost converter. This way the PowerBank can get charged up through the Laptop power supply and aftewards charge up the Laptop directly to give it an additional run time of 3 hours. Let's get started!

Step 1: Watch the Video!

The video gives you all the information for a basic overview of the project. During the next steps, I will present you more detailed information.

Step 2: Order Your Components!

Here you can find a parts list with example seller (affiliate links):

Aliexpress:

16x INR18650-25R Li-Ion Cell: https://s.click.aliexpress.com/e/_d6ri0or

1x BMS: https://s.click.aliexpress.com/e/_dXrLJ6X

1x LiPo Voltage Tester: https://s.click.aliexpress.com/e/_dUTvD19

1x Current/Voltage Monitor: https://s.click.aliexpress.com/e/_dY9f0UX

1x Boost Converter: https://s.click.aliexpress.com/e/_d7pv5aR

1x Buck Converter: https://s.click.aliexpress.com/e/_d9bTT6r

2x DC Jack: https://s.click.aliexpress.com/e/_dXZeR8b

2x DC Jack Connector: https://s.click.aliexpress.com/e/_d8OHOx9

3x SPDT Switch: https://s.click.aliexpress.com/e/_dYWkMuB

Ebay:

16x INR18650-25R Li-Ion Cell: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

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

1x LiPo Voltage Tester: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Current/Voltage Monitor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Boost Converter: -

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

2x DC Jack: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x DC Jack Connector: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

3x SPDT Switch: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.de:

16x INR18650-25R Li-Ion Cell: https://amzn.to/2HjPliH

1x BMS: https://amzn.to/2TWqbb6

1x LiPo Voltage Tester: https://amzn.to/2RyZSex

1x Current/Voltage Monitor: https://amzn.to/2Hvcezw

1x Boost Converter: https://amzn.to/2VXei6G

1x Buck Converter: https://amzn.to/2ATqiNP

2x DC Jack: https://amzn.to/2RB55Cp

2x DC Jack Connector: https://amzn.to/2RB55Cp

3x SPDT Switch: https://amzn.to/2W6nLca

Step 3: 3D Print the Enclosure!

Here you can find the 123D files as well as the .stl files for my enclosure. But make sure that you also print the corrected lid file which is 5mm longer.

Step 4: Do the Wiring!

Here you can find the wiring schematic along with tons of reference pictures of my laptop powerbank. Feel free to use them to create your own powerbank.

Step 5: Success!

You did it! You just created your own Laptop PowerBank!

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

http://www.youtube.com/user/greatscottlab

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

https://twitter.com/GreatScottLab

https://www.facebook.com/greatscottlab

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    18 Discussions

    1
    jessyratfink
    jessyratfink

    1 year ago

    The enclosure looks fantastic. Really clean :)

    0
    SagarH13
    SagarH13

    9 months ago

    Hey, the output voltage was set to 19.5v, what about current? Should it be set to some value? Constant current?

    0
    Jonny Jonny
    Jonny Jonny

    Reply 6 weeks ago

    i don't think that it matters. the laptop will draw the required amount of current. all you need to make sure is that the convertor you're using supports the current draw of the laptop.
    He only limited the current on the batteries as they have a current limit recommendation and exceeding that can lead to the battery degrading faster than normal or possibly causing fires.

    i know this is a late reply but hope it answered your question and helps anyone else out...

    0
    JennyT131313
    JennyT131313

    Tip 7 months ago

    EBay links aren't really helpful as once products are sold the link changes. Perhaps a link to an online retailer with a suggestion to check eBay???

    0
    whorez22
    whorez22

    1 year ago

    can somebody send me the files seperate

    0
    whorez22
    whorez22

    Question 1 year ago

    can u up load each part separate because i can not print all at once

    0
    DevJ10
    DevJ10

    1 year ago

    Since I am not a EE, I am looking for one who can create a PCB for my powerbank with nand chip on it for prototyping. I know I can order such pcb's from China for powerbanks but I need an extra function on my device for storage. the measurement of such pcb would be around 150mm/200mm by 1000mm (see pic as a format), double or triple layers. I have a small budget can pay you but let me know your rate.

    apc-angle.jpg
    0
    olgierdzwirski
    olgierdzwirski

    Question 1 year ago

    a better solution would be to increase the laptop battery

    0
    Antzy Carmasaic
    Antzy Carmasaic

    1 year ago

    That's a great project. I'm happy to see you included all the safety measures in it.
    I had the same problem of less working time out of my old laptop battery. So I got a new battery and now if the battery dies, I can hibernate the laptop(it auto hibernate when battery level drops), switch out the battery and continue working. Much simpler method but yours is much cooler :)

    0
    Take tech
    Take tech

    1 year ago

    win 7?????

    0
    GUTGUTPL
    GUTGUTPL

    1 year ago

    Can you make DIY BMS?

    0
    GreatScottLab
    GreatScottLab

    Reply 1 year ago

    It is on my to do list

    0
    abuhafss
    abuhafss

    1 year ago

    This is amazingly, excellent !

    0
    MehdiK32
    MehdiK32

    Question 1 year ago on Step 5

    This is amazing! Any workaround to save costs on the BMS?

    0
    blkadder
    blkadder

    Answer 1 year ago

    Have a look on AliExpress, you can save a few bucks at least. I did a quick search for an 8s 24v BMS, and saw a few listed over there.

    0
    GreatScottLab
    GreatScottLab

    Answer 1 year ago

    Not really. Sorry.