Dan Pražák On Sunday, a very interesting post appeared on reddit, which dealt with the effect of battery wear on iPhone performance, or iPad. You can view the entire post (including an interesting discussion). <a href="https://cdn.shopify.com/s/files/1/1932/8043/files/200721_ODSTOUPENI_BEZ_UDANI_DUVODU__EN.pdf?v=1595428404" data-gt-href-en="https://en.notsofunnyany.com/">here</a>. In short, one of the users found that after replacing the old battery with a new one, his score in the Geekbench benchmark increased significantly. In addition, the user also noticed a significant increase in system fluency, but this cannot be measured empirically, so he used the score from a popular benchmark.
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Patrik Siwek Before he had his iPhone 6S battery replaced, he was scoring 1466/2512 and the whole system felt very slow. He blamed it on the new iOS 11 update, which messes with older phones. However, his brother has an iPhone 6 Plus, which was significantly faster. After replacing the battery in the iPhone 6S, it achieved a Geekbench score of 2526/4456, and the system's agility is said to have improved significantly. Shortly after the publication of the attempt, the search began to find out why this is actually happening, if it is possible to replicate it with all iPhones and what can actually be done about it.
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Ondrej Holzman Thanks to the investigation, a possible connection was found with the problem that some iPhone 6 and slightly more iPhone 6S were suffering from. It was about battery problems, due to which Apple had to prepare a special recall campaign in which it replaced the batteries in their phones for free to affected users. This "affair" dragged on for several months, and it basically ended with the release of last year's version of iOS 10.2.1, which was supposed to "mysteriously" solve this problem. Thanks to the new findings, it is starting to be speculated that Apple has set artificial throttling of the processors in the affected phones in this update so that the battery does not degrade so quickly. However, the direct consequence is a reduction in the overall performance of the machine.
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Tomas Chlebek Based on this reddit post and the subsequent discussion, there was quite a big uproar. The vast majority of foreign Apple websites are reporting on the news, and some of them are waiting for the company's official position. If it is proven that Apple artificially throttled the performance of its older devices due to the battery bug, it will reignite the debate about the targeted slowing down of older devices, which Apple has been accused of many times. If you have an iPhone 6/6S at home that is really slow, we recommend checking the battery life status and trying to replace it if necessary. It is very possible that the performance will "return" to you after the exchange.
Any tips on an app that will show me the battery life status? What works in iOS11, of course... in the era of "defectives" I didn't solve it, although the number board answered my disability. There are times when it's slow and geekbench has about half of what I should have and the CPU runs at 911Mhz :D
How do I check my battery life? I have an iPhone 6 and I also notice a radical slowdown. I charge very often, so I was already thinking about changing the battery. They told me at the service center half a year ago that it cannot be measured. So how is it?
(I already found Battery Life Doctor)
The application can't do it, the service should measure it, try another one that can. The slowdown will be more due to the fact that iOS11 is there. But if you have a 3-year-old battery, the capacity won't be much. But don't count on the performance, it's stupid... The battery doesn't affect the performance, it's like if you connect your computer to 380V at home and expect some boost :-)
https://www.reddit.com/r/iphone/comments/7inu45/psa_iphone_slow_try_replacing_your_battery/
something else is being written here... and I've tried it myself at home... it's strange, but it's as if some electronics monitors the battery status and adjusts the CPU clock based on it. One thing is the numbers given by the apps, and the other thing is the directly visible jump in the fluidity of the entire system
Big slowdown on my iPhone 6 too. The phone is slower than my girlfriend's 5S. However, the endurance is fine after the last updates.
My iPhone 6 is ripe for throwing away with iOS 11.
The battery status will be measured by the paid version of the coconutBattery application, it exists only for macOS. I am attaching a screenshot of the iPhone 7plus battery status indication after a year of use. It is at 93.4% of its original capacity. Thanks to the smaller battery and the greater number of charging cycles, the iPhone 7 can be used for the same amount of time at 91%. After three years, as someone wrote here, the battery is at half, or rather its increasing internal resistance allows it to supply less and less current, which is manifested by the user turning off the device. For that reason, even Apple reduced the performance of the processor in software to limit its current consumption under load. In fact, it is almost necessary to replace the battery approximately every year and a half, not only for the iPhone, but for every phone.
It is also still true that it is necessary to charge the batteries with a low current, ideally buy a 500mA charger. Although the phone can be charged for up to 5 hours, its lifespan will be significantly increased. Charging an iPhone with e.g. a charger from an iPad, which also gives 2400mA or another, typically in a car means destroying the battery very quickly.
On that note, it's a good idea to charge your phone wirelessly if your phone allows it. Then the resulting charging current going to the battery is lower. Even though the current QI specification v.1.2 allows charging even 15W, iPhone 8 and X can only charge 11.2W from iOS7,5 (up to version 11.2 only 5W), which is actually more than the original charger that has 5W, so it is just a theory. In reality, wireless charging gives a smaller charging current. It will also help to put a 5mm plate of non-conductive material between the phone and the QI wireless charger. The charging current will be so small that the phone will charge all night, but the battery life will be very long. Contrary to the widely held view, the phone does not manage charging itself much in this regard.
https://uploads.disquscdn.com/images/acbee9b992a74668b883ffc2dcb385999775586e435a9c79a09cf298c64745ce.jpg
https://uploads.disquscdn.com/images/2e595df3e323080beaa3709b122954561bdb918ce4ecdc4cfd4f742aba15066a.jpg
The free download Battery Life will show the current battery capacity too. With the charging, I thought the USB would give everyone as much as they want, plus or minus the same.
It does not give the same current. That's why Apple makes a stronger charger for the iPad.
So how does the usb charger work? I'm a bit old school, but I thought that the current is not determined by the charger, but by what I connect to it, and that the iPad charger can simply give a higher current, thereby shortening the charging time. How exactly this relates to battery life is not at all clear to me. I'd like to have it explained.