Multi Port USB Charger




Posted in TechnologyUsb

Introduction: Multi Port USB Charger

Tired of figuring out how many USB chargers you can cram into one outlet.

Step 1: Warnings

After you make these modifications NEVER connect this USB hub to a computer.

As usual create at your own risk!

Step 2: Compatibility

The following devices have been tested and charge:

Nintendo 3DS
Nintendo DSi
Kindle Fire HD 7
Apple iPhone
Apple iPod
Samsung Galaxy S2
Samsung Tab 10.1
Samsung Galaxy Note 3
OnePlus One

Note: All of these device will charge but not all will charge at max current.

Step 3: Tools Needed

Soldering iron
Small screwdriver

Step 4: The USB Hub

The USB hub to modify. Save the wimpy power supply for another project.

Step 5: Opening the 10 Port USB Hub.

Flip USB hub over. Remove back cover by gently prying along the seam.

Step 6: Free the Circuit Board!

Gently pry out the circuit board. In my USB hub the power end had more room to get out compared to the other end.

Step 7: Circuit Board Out

Here is the circuit board once it is out of the case.

Step 8: Time to Solder

You may not be able to see from these 2 pictures but I had to fix many cold solder joints on this board. I was amazed at how many there were. All good solder joints must have a wet look to them. You can look up a soldering Instructable if you do not know how to solder.

Step 9: More Solder to Short Pins

Locate the USB pins on the bottom of (opposite side of USB ports) the circuit board. Get out your trusty soldering iron and some solder. You want to short the two middle pins together.

Step 10: New Power Supply

Purchase a 5 volt power supply with a compatible connector. I found a 5v 8 amp power supply.



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    easy way to design the multi port charger


    Hi, nice ible, I wanted to do something like this as well. But maybe for those who cant read from the board what those 2 middle pins are, can you tell us why we want to shorten those two? Are those Data+ and Data-? Is it necessary to shorten them and make the multiport charger-only-no-data? Thanks, best regards, Felix

    1 reply

    Many iPhones and Android devices will test if data+ and data- are shorted together. This signals that they are connected to a power supply and not a computer. A standard computer only supplies 500mA so they will operate in a slow charge state. Shorting the pins signals that they can draw the max current they can to charge.

    if only one device will be connected it will get all 8 amp?

    1 reply

    The devce will only draw the maximum current it can. You can not push 8 amps into the device.