What are the chances of recovering water-damaged chargers and restoring iPhone and MacBook functionality?

If you "smelled something" when you tried to use the charger, stop using it. Dispose of it and get another one. It's not worth ruining expensive equipment.

Based on the information you've provided and the fact that we don't have our hands on your equipment, it's hard to say exactly what the problems are. Phones should not be "difficult to charge." If yours is, it means there was already a problem. Contact Apple and arrange for them to be evaluated. They can do a lot of diagnostics remotely. There's a support link at the bottom left of every page of the forums.

For your own safety and others, you should never (ever) connect any electronic or electrical device that has (or is suspected of having) been submerged in water, or is water damaged, to AC-mains. To do so risks damage to any connected devices - or worse, an electric shock to you that could be fatal.

A water damaged Power Adapter should not be connected to AC Power under any circumstances. It should be discarded and replaced. Similarly, AC power cables that have been immersed in water should also be discarded/replaced.

ninjaphrodite wrote:

Extremely lucky! It tripped a fuse in one room, which explains why the second outlet in the same room didn't work. My phone is finicky, so I couldn't get it in the right position in another room, but once I flipped the switch back up, it charged fine in the usual room. For the computer, I tried both rooms, both the regular charger and another plug and cable I found, even left it plugged in to this backup charger I pieced together in another room for hours, held down the power button - nothing. So today I went to an electronic store that does repairs and they said the charger works fine, but the computer's dead. So then I went to Apple and as soon as they plugged it in, it came on! No idea how or why, but after that it worked fine, using Apple's charger, my regular charger, or the backup charger I pieced together yesterday. Such a relief, since I have accounts I wasn't able to log in to from another device!

Arguably, a more correct reply here would have included “and now I have complete and current and continuous backups of my important data”.

You very nearly joined the no-backups-lost-my-data club here, while many of us already have a lifetime data-loss club membership.

We are one club you do not want to join.

ninjaphrodite wrote:

I didn't. That only works within a certain time frame.

Didn't what? What only works within a certain time frame?