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:
Kindle Fire HD 7
Samsung Galaxy S2
Samsung Tab 10.1
Samsung Galaxy Note 3
Note: All of these device will charge but not all will charge at max current.
Step 3: Tools Needed
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