I also have a surge protector which has two USB-A slots on it. Would this cable from Amazon be a reasonable replacement for the adapter above? Additionally, would there be any issue if I used a USB ...

I recently bought a replacement laptop PC from Dell and was happy to see that its AC/DC power adapter had the same ratings as the ones I had from two now-defunct Dell laptops (19.5 V, 2.3 A/45 W).

Update 12/05/18: Apple now sells an 18W USB-C power adapter for $26Remove non-product link. To use it with your iPhone, you still need to purchase a USB-C to Lightning cable. We haven’t tested it yet, ...