Don's Home Technology Tablets & Smart Phones iPhone Battery - Charging |
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Contents: Charging amps-time Gunk in the charging port Battery Health (replacement special for 2018) Certified lightning charging cables Charging amps-time
Lint and gunk in charging port I noticed sometimes my iPhone didn't charge. I took it to the Apple Store and they found a bunch of gunk in the charging port Turns out there was a lot of gunk in the charging port They said to shoot some compressed air (one of those aerosol cans you get at Home Depot, Costco, Lowes, etc). At https://www.imore.com/how-clean-your-iphones-charging-port they say to use a toothpick, because the air may just pack it in further. Battery Health (replacement special for 2018): Battery Life is the amount of use you get from your device's battery before it needs to be recharged. This is usually measured in hours. Battery Lifespan is the amount of time your battery is usable before it stops being able to hold a charge long enough to power your device. This is usually measured in years. Battery charge holding capacity:
Battery Lifespan is the amount of time your battery is usable before it stops being able to hold a charge long enough to power your device. This is usually measured in years.
At iPhone Battery and Performance - Apple Support - Apr., 2018 they say, The one-year warranty includes service coverage. As lithium-ion batteries chemically age, the amount of charge they can hold diminishes, resulting in shorter amounts of time before a device needs to be recharged. In addition, a battery's ability to deliver maximum instantaneous performance, or "peak power," may decrease. A battery's impedance can increase if a battery has a higher chemical age, resulting in reduced voltage and power output. A battery’s impedance will temporarily increase at a low state of charge and in a cold temperature environment also.
iPhones 6 & 7 can suffer slowed response with an old battery. On iPhones 6 or later with iOS 11.3 and greater under settings > battery there is "Battery Health (Beta)" Excellent Battery can hold its full capacity Good Battery can hold between 85% and 99% of its original capacity Average Battery can hold between 70% and 84% of its original capacity Poor Battery can hold less than 70% of original capacity. Consider replacing your battery.Apple has a special on replacement batteries for iPhone 6 and above. $29 until the end of 2018. It will then go back up to $79 Your iPhone may shut down if battery performance is low. with iOS 11.3 it will automatically enable "Performance throttling" in iPhone 6 and 7s to slow down the CPU and avoid shut downs. You can disable this in Settings > Battery > Battery Health see https://9to5mac.com/2018/03/30/how-to-check-battery-health-and-disable-iphone-battery-performance-throttling-in-ios-11-3/ and iPhone Battery and Performance - Apple Support - Apr., 2018
This can result in :
iPhone 5c and 5s and new iPads have "lightning" connectors for charging; One end is a standard USB connector and the other is a proprietary connector. Work around at iPhoneHacks.com 1. with phone on plug cable into wall or laptop 2. see message above 3. press and hold power button 4. turn phone off 5. phone will cycle back on automatically 6. lock screen will show warning message but this time the phone will be charging 7. unlock phone and it will still charge.
I also had problems with some USB power supplies. A 1 amp belkin (120 V) and a .750 amp Belkin (12 V) did not indicate that they were charging my iPhone 5s with iOS 7 and the cable supplied by apple. But they were; The percent charged kept going up very slowly. 3rd party lightning charging cable The Apple store told me certified lightning cables have a chip to avoid over charging. Other cables can damage your battery. StackExchange.com says there is no evidence of this. However there are many Apple MFi ("Made for iPhone/iPod/iPad") certified cables. These will be more expensive than other non-Apple cables, but they have been approved by Apple and should not damage your device. On amazon you can search for https://www.amazon.com/s/?ie=UTF8&keywords=mfi+certified+apple+lightning+cable
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