iPhone 13 Battery Health Reduced, Is it normal?

Hi Bro…IPhone 13 use pannitu iruke bro…mobile vaggi 1yr 10 months achu ipo battery percentage 88 la iruku…is it normal ah bro Illa ethavathu issue iruka

Yes bro. 1 year 10 months ku 12% reduce is normal only. 2.5 years average time unga device ku varumnga to reach that 80% battery health. then change it at apple service center for normal usage.