iPhone 15 Pro Max Battery Health Reduced 4%

Bro im using iPhone 15 pro max purchased on may 2024. Battery health is 96% in 99 cycle counts.
Within one month 4% drop agirku bro.
iOS 17.6 use pandrapo 3% drop and iOS 18 la 1% drop.

hi bro, battery health refresh agirukumnga. normal la iOS update pannumbothu battery health reduce due iruntha refresh aagitu new battery health show aagum bro. 4 months usage and 4% is normal, some months reduce aagathunga. charging practice follow pannureengala? and unga usage eppadi irukum?

Screen ON time athigama irukumngala per day?

Bro charging practice follow panitu than iruken. Heavy usage pana maten mrng charge panuna next day mrng than marubadi charge panuven. Enoda usage somtimes 36 hours charge irukum 20% to 85% charge maintain panuven. Within 1 month la 3% drop aagirku.

Battery backup is good bro. intha 1 month la 3% difference refresh aagirukunga. but 5 to 6 months once battery health measure pannuna clear a irukumnga. dont worry. charging practice continue pannunga. and overall it will be maintained to reach that 2.5 years time bro.

Defect iruntha 1 year la 80% vanthudum. so use pannunga check after 2 to 3 months again bro.

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Okay bro thank you