Sorry to read that others are still having problems. Maybe it is as simple as where all of us are located and it is summer? Is it getting hotter because of the temperature outside? Are any of you leaving the phone in the Volvo XC40? Are any of you placing the phone on the charger when it is almost dead to begin with? I must admit that my phone is usually at 100% charge when I leave the house. So, putting it on the charging mat/cradle as soon as I get in my car means that it is not going to lose any charge but it also isn't having to charge it up either. When I get to my destination, I take my phone with me and may use it sparingly. So, when I get back to the car, it might still be saying 90% charge. I place it down on the mat and when I get to my next destination, it is 95% or 100% again. Mind you, that most of my trips are local runs. From home to work is a 15-minute drive. From home to the grocery stores is 5, 10, 15 or 20-minutes depending on which one I go to. Visiting friends or family is never more than 30-minutes away but often less. The mall, doctor offices, dentist, car dealer again, are all 20-minutes or less away (with traffic). So, perhaps I am not the best candidate to prove that the charger makes my phone get hot or take too long to charge. My longest trip so far, since getting the XC40 in May, has just been a 3-hour drive up into the mountains of Western Maryland. Still my iPhone 11 lasted the entire day and I got back home with still over 50% battery and I was using the phone to talk, to people, as well as take pictures and video during the hike in the mountains. Each time I reach to take the phone out of the Volvo and carry it with me, it does not feel hot to the touch. I get no warning on the iPhone that says it is too hot either. I did see that once with an iPhone 7. However, I did not have the Volvo then, and that was when I was on the top of the Hoover Dam and it was about 119 degrees in the sun. Using it to record, at that time, the phone was overheating and it shutdown to preserve itself. My iPhone is in a case. I bought it on Amazon:
TORRAS iPhone 11 Pro Max Case, Non-Slip Anti-Fingerprint Shockproof Liquid Silicone with Microfiber Lining Shock Absorption Gel Rubber Full Body Protection Case for iPhone 11 Pro Max, Black