At 5V/2A, you’ll also get a speedy charge on your iPad, though not as fast as possible. For those focusing on iPad charging, there are bigger versions that come in the 7000mAh and 11200mAh sizes.

This is why it defaults to the 5V x 2A supply when using the 18W adapter, and will do the same with most — but not all — existing 60W USB-C power adapters. Why can't a 15W adapter get 15W out ...

Not all USB A/C chargers are built the same. Keep an eye on what the amperage is on the USB adapter. Lots of "cellphone" USB chargers only supply 300mA or 500mA. that's not enough to trigger the ...