Chosen Solution
There is a ton of mixed info about this. Older posts state that battery health doesnt work with aftermarket batteries, yet some people post that newer batteries now support this feature. I am thinking about ordering a replacement battery for iPhone 6 and am curious if the feature will work or not. If it doesnt work, then is there any way to tell if the phone is throttled other than running a benchmark?
You’re right, the feedback is mixed, and it’s because iFixit batteries are not 100% reliable on this yet—whether or not the battery health feature will work depends on your exact model iPhone, which iOS version you have installed, and the battery’s internal firmware version. We’ve developed a long-term solution that should work for all batteries on all past (and future) versions of iOS, and it’s making its way out over the next month or two. So if you want the battery health feature and you have the luxury of waiting a bit, you may want to check back in February or March. To your second question: the phone is only throttled if the battery is unable to supply the needed voltage. So yeah, running benchmarking software like Geekbench is a great way to verify that everything is ship shape. Hope this helps!
It depends on the battery, some aftermarket ones fail to show any battery information but function. You can see this if it doesn’t show battery info on both 3UTools (Windows application downloaded from 3u.com) or Battery Health in settings. If you only have a Mac you can use CoconutBattery app instead.
