I brought a brand new iPhone 12 my battery health went from 100 to 97 in one month with 72 cycles I had iPhone 8 Plus with like 600 charge cycles with 86 battery health for over 5 years of use! I use original iPhone charger What’s the problem?!
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Chemistry baby
The iPhone 12 lineup has some really bad battery health overall… my old refurbished 12 Promax dropped from 98% to 85% in 3 months of usage by charging it one time every 24 hours and also sometimes one time every 48 hours… most 12 phones have like 72% health after just 2 years of usage instead of around 85-88% Also, yeah… if your phone was actually new in seals, etc, that doesn’t mean it’s actually “new” Phone could’ve been sitting in a box for a long time unopened before getting it sold to you ( because iphone 12 lineup is discontinued) Battery ages even if you don’t use it !!
How do you achieve 72 cycles in a month. You fully depleted and charged the battery twice a day?
Degradation is not linear. Stop worrying until it drops below 85%.