Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
What to do first - iPhone 16 ?
- Thread starter _dragan
- Start date
- Sort by reaction score
Yes...so once upon a time, there was a rule that You must totally empty out the battery and after that charge the battery till 100 percent and repeat that 3 times due to calibration
I know Apple used to recommend battery calibration but since iOS 14.5 it isn't necessary anymore. Battery calibration is done through software now..
support.apple.com
About recalibration of battery health reporting in iOS 14.5 or later - Apple Support
Understand recalibration of the battery health reporting system on iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max.
3 charge cycles? I don't think that was ever a thing.. it sounds like someone was taking a "rule" about NiCAD batteries and applying it to LiIon batteries - LiIon batteries don't have a "memory" like the old NiCAD batteries had.Yes...so once upon a time, there was a rule that You must totally empty out the battery and after that charge the battery till 100 percent and repeat that 3 times due to calibration
I have been using IPhones since the iPhone 4S was release and I have never immediately charged a phone after unboxing. Do keep in mind that LiIon (Lithium Ion) batteries don't like being completely discharged, so I never allow my Apple devices to go below 10% battery and I charge them to about 90%. I have owned the 4S, 5, 5S, 6S, 7, XR, 11, 13 and 15.. and I've never had any problems with any of them.
Quite inaccurate!I know Apple used to recommend battery calibration but since iOS 14.5 it isn't necessary anymore. Battery calibration is done through software now..
About recalibration of battery health reporting in iOS 14.5 or later - Apple Support
Understand recalibration of the battery health reporting system on iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max.
It applies for 14.5 or later specific to 11 series. Not universal.
It was the mentioned right below the title.
Last edited:
Show me any support document that Apple has released that supports the fact that you need to calibrate your battery.
I'm not saying Apple requires users to calibrate their battery. I'm just pointing out to the fact that your statement is false.
iPhones 15 and up occasionally charge to 100% to calibrate their battery but is not the case with older models. This implies charging to 100% is required every now and then for the iOS to gauge the actual battery capacity aka calibration. This is the case with any Li ion batteries and even more so as they age.
Battery calibration only tells the iOS that 50% charge is actually 50% charge and doesn't affect the functionality.
I'm only asking not to spread misinformation. There's always something new to learn.