iPhone 11 Pro IPhone 11 Pro left uncharged over night, drained from 40% to 0% over ~9 hours...?

[heifetz7]

My phone was not placed properly on my wireless Anker charger last night. This morning, I woke up, and the phone was dead. I checked the battery level, and it said that it had 40% at around 11pm, and minimal activity! Not sure if this was due to IOS 13 updates, or the phone, but I don' t I've experienced this in the past, and also don't expect the battery to be used so much with the screen off, and no activity! It doesn't even drain this much when I use it for 12 hours during the day - usually I get around 50% at the end of the day. Really perplexed...

Anyone else experience something similar to this?

 

[CMoore515]

Can’t say that I have on my Pro Max. Matter of fact, I can get through at least a day and a half before I even have to think about charging. Have you been changing settings or something?

 

[AustinIllini]

Charge it to full and wait for it to happen again.

If it happens again, it's well within the manufacturer's warranty.

 

[BigMcGuire]

I had this happen one night out of all the nights that I've had my 11 Pro Max. Just rebooted the phone and it went away. Every other night (except for that one night) - the phone doesn't drain overnight. I don't charge overnight anymore because of the fact that there is almost 0 loss overnight for me.

 

[TrueBlou]

I forgot to put my Pro Max on charge last night - a first for me. But from going to bed at 11p.m to getting up at about 6a.m, I lost less than 5% of my charge. I couldn’t speak to how often that would happen of course, as I say, normally I plop it on a charger at night.