Therefore, if you can use and charge your iPhone 13 Pro Max reasonably and efficiently, it is acceptable for the battery to drop to 96% after a year. If you feel that the decline rate is too fast or there are other problems during use, it is recommended to consult Apple's professional after-sales or repair services for help .
It is normal for Apple to go from 13 to 92 in six months. Apple fell to 98 in the first half of 2013, which is normal. Since the built-in battery of the Apple 13 is a lithium battery, lithium batteries are consumables. Normal use will impact the lifespan. After the iPhone 13 battery has been used for six months, it is normal for the remaining health level to be between 85% and 99%, usually around 95%.
There is no need to worry too much about the iPhone 13 battery capacity dropping from 100 to 99. This is also aboutdue to normal wear and tear of the rechargeable battery.