) battery exchanged right before my AppleCare was over. I just told Apple Store staff that I noticed some pretty steep battery drop recently and wanted to get battery replaced to make sure it was not battery’s problem. Granted, this happens in Sydney, which could be different for other cities and countries.
The battery in my iPhone 7 Plus, purchased September 2016, is currently rated at 91% on the iPhone, and at 94% in iMazing (451 charge cycles). I charge every night on my nightstand, and the phone is typically at 30-40% charge when I plug it in.
Temperature plays a lot of factor in battery longevity, which can be challenging in winter climates.
I usually get mine down to 30%-20% every day and leave it charging all night. Still at 100%. Launch day Max.
Especially if the battery is small, meaning every charge can take up the cycle more often.
You’ve been lucky. There are MANY rules with batteries, but the biggest ones are to avoid heat and keep it above 20% whenever possible.
It's not lucky when I've had the same experience with every phone I've touched. I have three XS Max that I bought between October and December. All three are still at 100% capacity. I charge them only when they get to 5% or even lower. My daily Max has even ran out of power a few times over the months. I charge them with an 18 watt iPad charger which makes thephones get warm. It's clearly not harming my batteries.
You have 3 phones you use on a daily basis? If so, your cycle count is surely very low.
One is just used for music and BT calls in my car. I leave it in there while I am on my job connected to the USB port so it always stays charged. It's battery capacity is at 100%. Haven't checked the cycle count since buying it in December. Since it's always plugged in, in the car, I'm sure the cycle count isn't even 50 yet.
