Showing posts from December, 2016

Mega 108 Watt 10 port USB charger with Quick Charge QC2.0

It finally happened, my travel kit grew to a point where more than 5 USB charging ports are required at one time. Chargers with more ports are available but I don't need yet another charger.  Instead I combined 2 good ones I already have. You could use them separately but one of my goals is optimizing design.

I started with two of these 54W Aukey 5-port USB chargers (PA-T1):
Ports 1-4AiPower5V2.4A each (max 7.2A)Port 5Qualcomm Quickcharge 2.0 (older but still great)5V2A / 9V2A / 12V1.5A
Then extracted some powerful neodymium magnets which were originally rubber feet from a Foxconn mini PC.

Cyanoacrylate provides a good bond between the metalic magnets and plastic so these can just be glued on after removing the rubber and surface prep with isopropyl alcohol.
The magnets turned out to be asymmetric so the larger side had to go down to increase the surface area for bonding.  This means that the poles are now repelling. Fortunately repelling magnets attract well side-to-side so I jus…