Device hot and battery draining on charger

Hi Nov4cane,

Thank you for contacting Apple Support Communities. Based on what you stated, it seems like the battery life is being used while the iPhone is not being used and the iPhone is getting hot. There are a couple things you can try that may be able to help. Take a look at the "Tips for iPhone, iPad, and iPod touch" section.

"Dim the screen or turn on Auto-Brightness to extend battery life.

• To dim, open Control Center and drag the Brightness slider to the bottom.
• Auto-Brightness adjusts your screen to lighting conditions automatically. To activate it, go to Settings > General > Accessibility > Display Accommodations and set Auto-Brightness to On."

• "You can optimize your battery life by turning off Location Services for the app. Turn off in Settings > Privacy > Location Services.
• In Location Services, you can see each app listed with its permission setting. Apps that recently used location services have an indicator next to the on/off switch."

Maximizing Battery Life and Lifespan

Keeping iPhone, iPad, and iPod touch within acceptable operating temperatures

Please don't hesitate to let us know if the steps resolved your issue or if you need additional assistance.

Cheers.

What kind of answer is that? something is wrong. my battery went from 30% to 15% in 15 minutes. Your soultion above doesn't even address the problem!

I am using my new iPhone 12 mini recently, with iOS 14.3.

I have the exact same issue. But worse. The battery draining is always there if I charge with a MagSafe Wireless charger.

The speed of draining is actually faster than without charging -- MagSafe is literally sucking the battery!!

I noticed the same thing. Had it charging via MagSafe and then I decided to swipe down to check my percentage, and to my surprise I saw it actually decreasing (Over the span of about 20 minutes). My guess is its the phone trying to "optimize" the battery by letting it drain to 80% because of the heat MagSafe can generate.

Not 100% sure on this but that's my best idea of what's happening.

I just went through the same thing with my iPhone 12. My battery was draining rapidly and my MagSafe charger wasn’t charging my phone. I went through a 2 month long process with apple support, they ran through so many diagnostics, had me reset my phone, sent me a new phone, & nothing was working. Until I finally factory reset my phone, log into my iCloud account but did not upload any backups so I basically had to lose any data or apps that was not saved to the cloud and just start over. It has definitely helped so far but I have never gotten an answer as to what caused the issue and why all my other iPhones never had this issue but suddenly with this new iPhone I had to start over from scratch.

I am having the exact same issue. The magsafe charger just keeps draining my battery and decreasing the battery percentage of my iphone 12 mini. I've found multiple complaints on here but no solutions and i'm rly annoyed so Apple please do something about this and give us an actual fix asap!

I am having the same experience with my iPhone 12 Pro. If I use an 18 or 20W adapter, the Magsafe charger drains the battery fast instead of charging it but if I use a lower Wattage power adapter, it charges just fine. There is definitely a problem here and Apple needs to fix this fast.

I'm having the same issue. Connect to MagSafe charger, battery draining instead of charging.

I'm with iPhone 12, MagSafe charger, MacBook Air power adapter (30W). tried another power adapter (18W) also the same issue.

I had my Qi wireless charging to the same iPhone 12, the wireless charging is working even with a slow charge rate (~3W).

I thought MagSafe give me a good charging rate but it just turn me upside down!

Anyone kind to share the solution other that the hard factory reset?

I have exactly the same issue. This is crazy. It works perfectly for my wife iPhone 12pro Max, but on my mini discharges. It works in normal Qi chargers. Does not make any sense