I bought 14 plus 2 months ago battery health 100. From beginning i used to charge mob before 21 percent!! Today its below 18% and I charged to 100%. Is there any problem for battery!! Just today!! Not before and hereafter. Is that okay if its done for oneday!! Thank you!!
Absolutely not a problem bro. as I said in the video, you dont have to be worried so much about battery health. enjoy using your iPhone. Avoid draining frequently, even few times if its drained when you are travelling and couldnt find any charger, its not a problem. you can keep the phone OFF when it reaches around 2% of battery power. charge and use it when you find a charger.
overall you will see 2.5 years on an average time to reach 80%, then we change battery at apple service center.