It all started when a number of iPhone 6s users started complaining about random shutdowns and slow performance. Apple said that the issue affected “very small number” of iPhone 6s users. However, the company fired up a repair program for the users and also started offering free battery replacements. In the due course of time, Apple said that more users were affected by this problem and the same would be fixed for all with an oncoming software update. After releasing the iOS 10.2.1 nearly 80 percent of the users claimed that it had solved their problem. It was earlier speculated that Apple had made some amends to the power management system. However a recent Reddit thread seems to have shed some light on the issue and this is what one of the Redditors had to say, The thread was soon flooding with comments and a majority of the users witnessed a spike in the performance after the battery was replaced. The performance boost also reflected on the benchmarks and in the real life usage as well. As per one of the Redditors, Apple apparently throttled the devices in order to solve the problem. It is further speculated that Apple was not interested in changing the faulty batteries since the number of devices affected was staggering. Instead, the company chose to throttle the device via the iOS 10.2.1 update.
How to check if your iPhone 6 and iPhone 6s are affected by this issue?
If you suspect your device is slowing down or the overall performance is not what it used to be earlier you can use CpuDasherX to check the clock speed. If your clock speed is less than what it ideally should be it incriminates (or does it?) Apple of throttling the device. That being said, the much newer Apple iPhone 7 isn’t affected by this battery issue since they employ a slightly varied power delivery structure. In the meanwhile, it is also quite likely that your iPhone battery may be nearing the end of this life. iPhone batteries are usually built to last for an average of two years of charge cycles and perhaps your battery is permanently running out of juice. We have earlier seem how macOS works to optimize the hardware in order to correlate to the battery wear and the chances are that the same is happening with your iPhone6/6s. Let’s just hope Apple clears the air and explain why the throttling is actually happening.
