Slow discharge on charger overnight

[HunPro]

Hi!

I have a new iPhone 12 Mini, latest iOS and all. I've put it on an AC charger for the night (Apple A1400, 5W), the same way I did for the past week, and it chimed and showed the "charging" status.

Then, this morning, it was on 25% charge. As it turns out, despite registering the charger, it didn't take any power, in fact the discharge rate seems to be unaffected:

(The cable is fine. I had a dodgy 6 year old iPhone SE with contact issues, and no matter how bad the contact was, once connected and having a charging status, some Joules always trickled in. Here: none.)

All physical contacts seem to be fine. It's like a software bug. Any ideas?

 

[throAU]

I'd say its a bug. Try turning off optimised charging and see if it charges.

Try rebooting the phone (power off/on) - I have had a few instances where my 2020 SE would not charge wirelessly until I rebooted it (and as soon as I rebooted the phone it was perfectly fine again).

I know you're not doing wireless charge, but could be some similar sort of problem.

 

[now i see it]

test it again. May have been a non repeatable fluke.
Make sure the plug is fully inserted straight and no debris is in the port

 

[HunPro]

test it again. May have been a non repeatable fluke.
Make sure the plug is fully inserted straight and no debris is in the port

It's not debris. As I said: a 6 year old, wonky SE with contact problems will always charge once the status is "charging".

Here the status was charging all night, but it didn't take any power.

 

[now i see it]

Not true. There can be a momentary connection at first insertion, enough to register as a charge, but the connection can be so poor that only a minuscule amount of current is going into the battery which is less than the battery is discharging — so overnight the net result is still a discharge.

This may not be your phone’s issue but it is a possibility.

 

[HunPro]

Happened again, so the latest iOS update didn't fix it.

I only restarted the phone once since I got it, for the OS update.

 

[now i see it]

It’s a good practice reboot phone at least once a week.

This is what my battery discharge does over night. I set up a Shortcut to automatically put it into Low Power Mode after I go to bed. Helps a little bit.