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      10-05-2018, 09:14 AM   #1
fridex
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M2C - Wireless Charger - iPhone gets HOT

My phone gets pretty hot when charging in the car.
Even short durations. Went for a 20min ride yesterday and it was burning up and charged the phone like 5% maybe.
iPhone 8.
I use a wireless charger on my desk and its totally fine.
Anyone else experienced this?
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      10-05-2018, 09:48 AM   #2
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Quote:
Originally Posted by fridex View Post
My phone gets pretty hot when charging in the car.
Even short durations. Went for a 20min ride yesterday and it was burning up and charged the phone like 5% maybe.
iPhone 8.
I use a wireless charger on my desk and its totally fine.
Anyone else experienced this?

+1

A number of folks have mentioned this, and I've read that it's probably due to the fact that the wireless charging in the M2 is less than perfectly efficient - lots of waste heat.

Here's what I've found:

1. If you use maps on your phone for any extended period of time, then the phone will heat up like crazy - found this to be the case whether I was plugged in via USB or using wireless charging. Maps simply use a ton of processing power with resulting heat. One time, when I was using maps and wirelessly charging at the same time, the phone got so hot it shut itself down

2. If I charge the phone wirelessly without using maps (use phone for music, phone calls, etc.) then it doesn't heat up excessively

My experience, thus far.
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      10-05-2018, 10:17 AM   #3
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Quote:
Originally Posted by fridex View Post
My phone gets pretty hot when charging in the car.
Even short durations. Went for a 20min ride yesterday and it was burning up and charged the phone like 5% maybe.
iPhone 8.
I use a wireless charger on my desk and its totally fine.
Anyone else experienced this?
Same issue at home on Anker wireless charger ... slow charging and iPhone 8 gets hot (but not always)
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      10-05-2018, 01:09 PM   #4
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It's just the built in phone warmer.
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      10-05-2018, 01:31 PM   #5
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Inductive charging is about getting the charging coil exactly positioned over the receptor inside the device. Failure to get these aligned perfectly produces wasted energy during the transmission - and this energy becomes heat.
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      10-05-2018, 02:42 PM   #6
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Quote:
Originally Posted by larry.beck View Post
Inductive charging is about getting the charging coil exactly positioned over the receptor inside the device. Failure to get these aligned perfectly produces wasted energy during the transmission - and this energy becomes heat.
Just tried again and I made sure to put it bang center. Even after 5min it got considerably warmer that usual.
I have no cover also.

Good phone warmer.
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      10-05-2018, 02:47 PM   #7
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Quote:
Originally Posted by cptobvious View Post
+1

A number of folks have mentioned this, and I've read that it's probably due to the fact that the wireless charging in the M2 is less than perfectly efficient - lots of waste heat.
What you need to get is the DINAN iPhone case that comes with a dual (Apple)core intercooler and costs double what a normal iPhone case costs... it will keep your iPhone cooler and if Apple gives you any trouble on warranty claims then DINAN will step in to cover it.

You can also qualify for the DINAN iPhone charm but only if you also get the DINAN iPhone cable, sold separately...
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Last edited by arquitecto; 10-05-2018 at 02:55 PM..
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      10-05-2018, 03:02 PM   #8
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^lol
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      10-05-2018, 03:36 PM   #9
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Anyone have this issue with the iPhone x or is this moreso a iPhone 8 thing?
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      10-05-2018, 07:42 PM   #10
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Quote:
Originally Posted by Protatomonster View Post
Anyone have this issue with the iPhone x or is this moreso a iPhone 8 thing?
My iPhone X gets hot but not scalding nowhere near shutting down.
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      10-05-2018, 07:43 PM   #11
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Quote:
Originally Posted by larry.beck View Post
Quote:
Originally Posted by Protatomonster View Post
Anyone have this issue with the iPhone x or is this moreso a iPhone 8 thing?
My iPhone X gets hot but not scalding nowhere near shutting down.
Are you using a case by chance? I'm using a leather case but if it get hot I might take the case off.
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      10-05-2018, 08:54 PM   #12
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Quote:
Originally Posted by Protatomonster View Post
Quote:
Originally Posted by larry.beck View Post
Quote:
Originally Posted by Protatomonster View Post
Anyone have this issue with the iPhone x or is this moreso a iPhone 8 thing?
My iPhone X gets hot but not scalding nowhere near shutting down.
Are you using a case by chance? I'm using a leather case but if it get hot I might take the case off.
I've got an Apple silicone case on it. Yes, it will probably work better without a case at all. My take is that so long as it charges at least as much as it burns to run CarPlay then I'm okay. I've got a lightning cable in there in case I need something faster.
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      10-06-2018, 09:40 AM   #13
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It’s hot also with my Iphone XS, silicone case...
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      10-06-2018, 09:45 AM   #14
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Quote:
Originally Posted by Alec02 View Post
It’s hot also with my Iphone XS, silicone case...
Is there a outlet in the glovebox if so you might be able to get a small fan to keep it cool I'm there
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      10-07-2018, 03:28 AM   #15
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Quote:
Originally Posted by Protatomonster View Post
Is there a outlet in the glovebox if so you might be able to get a small fan to keep it cool I'm there
Kind of central heating with no extra BMW charge 🤪
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      10-07-2018, 04:59 AM   #16
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If you are using a wallet case, be warned that charging with cards that have a contactless payment chip, or a metal card (amex) will also cause this heating effect and can also damage the cards.
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      10-07-2018, 05:55 AM   #17
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Quote:
Originally Posted by Protatomonster View Post
Is there a outlet in the glovebox if so you might be able to get a small fan to keep it cool I'm there
There is. But better thinking is probably just to use a USB to lightning cable. It will charge the phone much faster, plus, in my non wireless charging car the space in there easily accommodates the Xs Max very securely. Just make sure the power button faces the back seat. Otherwise you will accidentally call emergency services every time you put the phone in there.
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      10-07-2018, 09:33 AM   #18
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Quote:
Originally Posted by Davil View Post
There is. But better thinking is probably just to use a USB to lightning cable. It will charge the phone much faster, plus, in my non wireless charging car the space in there easily accommodates the Xs Max very securely. Just make sure the power button faces the back seat. Otherwise you will accidentally call emergency services every time you put the phone in there.
I always use the lightening cable, not only for the quicker charging like you mention, but I am also convinced that my music sounds better as well.
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      10-07-2018, 11:17 AM   #19
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Wireless charging has been shown to lead to increased phone battery deterioration. I'd definitely avoid it if possible.
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      10-07-2018, 11:25 AM   #20
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Quote:
Originally Posted by 10" View Post
Wireless charging has been shown to lead to increased phone battery deterioration. I'd definitely avoid it if possible.
Yeah, the heat causes significant battery deterioration. I totally wouldn't do it on a regular basis, except I signed up for the Apple iPhone program, so effectively I'm just leasing my phone on a yearly basis. So, I just need the battery to last 12 months! Ha!
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      10-07-2018, 12:15 PM   #21
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Quote:
Originally Posted by 10" View Post
Wireless charging has been shown to lead to increased phone battery deterioration. I'd definitely avoid it if possible.
I don't know if I agree. I've been using a wireless bedside charger for a year on my iPhone 8 now and I've notice no battery degradation.
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      10-13-2018, 04:08 PM   #22
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iPhone X - gets hot af...

I only charge it wirelessly, but the phone does not get hot at all with all the other wireless chargers i have.
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