They bricked my phone last year replacing the battery. That took hours to get the new phone going and a second trip to the store to try and wipe the original phone (it was completely dead). And getting appointments is not as easy as it was a few years ago (probably worse now due to covid)
The 11 Pros came with an 18w power adaptor - to fast charge using MagSafe you’re supposed to use a 20w PD 3.0 charger. As an ode to the iPhone 12, they’ve reduced the 20w Apple charger from $29 to $19 - a steal at Apple prices.
Fast charging on the iPhone 12 requires a 9v 2.22a power profile, something (according to AppleInsider) all 20w PD 3.0 chargers have but higher wattage PD 3.0 chargers may not.
I avoid fast and inductive charging because they heat the battery, so I use a lower powered charger - in my office I’m currently using a 10 port USB powered hub which delivers 5v 2.1a per port and a lightning cable.
Technically that’s a low end fast charger - isn’t the old Apple power adaptor 5w? - but I don’t want to sacrifice a precious AC plug for a little one-use charging brick.
On my nightstand I do do Qi charging my my phone’s low, but that charger is just so convenient that I’ll use it when either my phone or watch or AirPod’s charge is low. It’s a $29 charger I found on Amazon and unlike Apple’s product it’s actually something that exists.
I bought a $9 Aukey 18w USB-C tiny charger on Amazon and have been using it with Magsafe and iPhone 12 Pro. I suppose it’s not charging at the very max, but I don’t care. It’s really fast. I use it to top off my iphone during the day, so sometimes if it’s 50% by evening I might put it on the puck to charge it so I don’t run out later that night (depending on what I’ll be doing). I put it on there for 30 minutes and it’s up over 80%.
By comparison, my old iPhone 11 Pro on a Qi charger would take two+ hours to go from 50-90%. I put it on the charger multiple times a day to keep it charged. It was also really finicky and wouldn’t charge two out of ten times, requiring I fiddle with it until I got the green charging icon.
With Magsafe, I am only topping off the phone only occasionally (not every day) and for as little as 15 minutes. It works great.
From what I read, if you have the 9v 2.22a profile you can quick charge on MagSafe at 15w (except for the mini whose max is 12w); otherwise you’re limited to 10w.
I don’t even have my 12 Pro Max yet - heck I haven’t even been able to pre-order it yet - and my daughter in a stunning display of self-restraint doesn’t want her 12 until Christmas, so all I know is what I’ve read.