I have been reading information on why the PS Vita(1000) won't charge with regular usb power bricks and portable power banks. Apparently the USB cable is a proprietary one with changed pinouts that only get power when connected to the original power supply brick the Vita came with. Apparently you can fix this if you use a small adapter like this to convert the pinouts to the correct ones. I don't have one, so I can't test if it works. Regardless, I have a huge 30000 mAh power bank with three USB ports. Port one supplies 5V/1A, port two supplies 5V/2.1A and port three supplies 5V/3.1A. For reference, the official charger supplies 5V/1.5A. So I tried for trying's sake all three USB ports of my power bank to see if the Vita can be charged: Port 1: Fail Port 2: Fail Port 3: Success I was surprised by this because that doesn't make any sense to me. First this negates the claim that you need an adapter to convert pinouts, but at the same time it supports the claim. Why the hell won't the Vita charge with the 1A and 2.1A USB port, but charges with the overkill 3.1A port when the official charger only supplies 1.5A? Can anybody make sense of this? And will my Vita blow up when charged with the 3.1A port?