iPhone X Is my battery faulty?

[tonybarnaby]

Here's some validation:

The CoconutBattery screenshot below shows the "battery health" of a 855 day old iPhone 6 Plus that has been used constantly at least 12 hours a day every day. It has 846 load cycles on it.
Over this period (2.3 years) it has probably been charged to 100% full charge less than a dozen times. Typical charge cut off is near or below 80%. It has probably dropped below 40% less than a dozen times too.

You can see that treating the battery this way will essentially allow it to outlive the phone but at the cost of frequently topping it off to 80% or so several times a day. For me personally, it's easy to give it a bump up a few times a day since I'm usually not far from power for more than a few hours each day. And if so, I'll bring a spare battery.

Some people like to label proper li-ion battery maintenance as OCD behavior, but taking care of a li-ion battery correctly is no different than paying attention to your gas gauge or temperature gauge in your car. Also words like "stress over battery" are silly. What's stressful about plugging in a phone when it hits 40% vs 20%? It seems like playing Russian Roulette letting the battery linger down near 20% would be more "stressful" to me... knowing that without question that that lower charge level is hastening battery degradation.

For those who live near an Apple Store, replacing a battery is easy. For those of us out in the boondocks, a battery replacement is a formidable challenge— to be avoided if at all possible by just paying a little attention to the charge level indicator.

View attachment 777056

Very impressive the depths you go to conserve battery lifespan. I was once a battery rube myself. I find it next to impossible for your phone to still have 99.5% capacity after this much use and multiple years. Not from what you have done to prevent it, but from age alone.

 

[bimmahh]

Here's some validation:

The CoconutBattery screenshot below shows the "battery health" of a 855 day old iPhone 6 Plus that has been used constantly at least 12 hours a day every day. It has 846 load cycles on it.
Over this period (2.3 years) it has probably been charged to 100% full charge less than a dozen times. Typical charge cut off is near or below 80%. It has probably dropped below 40% less than a dozen times too.

You can see that treating the battery this way will essentially allow it to outlive the phone but at the cost of frequently topping it off to 80% or so several times a day. For me personally, it's easy to give it a bump up a few times a day since I'm usually not far from power for more than a few hours each day. And if so, I'll bring a spare battery.

Some people like to label proper li-ion battery maintenance as OCD behavior, but taking care of a li-ion battery correctly is no different than paying attention to your gas gauge or temperature gauge in your car. Also words like "stress over battery" are silly. What's stressful about plugging in a phone when it hits 40% vs 20%? It seems like playing Russian Roulette letting the battery linger down near 20% would be more "stressful" to me... knowing that without question that that lower charge level is hastening battery degradation.

For those who live near an Apple Store, replacing a battery is easy. For those of us out in the boondocks, a battery replacement is a formidable challenge— to be avoided if at all possible by just paying a little attention to the charge level indicator.

View attachment 777056

Very interesting data points. Sidebar, I thought coconutbattery was a mac only application. Is there an iOS version?

 

[now i see it]

This iPhone is still running iOS 9.3.5 with the native coconutBattery app installed (rather snappily I might add). I too question the 99.5% capacity claim it shows, but from what I can tell (seat of the pants) the battery lasts the same amount of time before a charge is needed as it did when I got it. It also takes exactly the same amount of time to charge up 65% to 75% for example (20 minutes with a 5W charger) as it did when new. So although the 99% capacity left claim might be stretching it, from a user's (my) perspective, the iPhone battery lasts as long as it ever did.

Li-ion batteries can last a very long time and endure high load cycles without degrading as has been verify by extensive testing. 97-98% capacity left after 846 load cycles certainly is possible.