- Jul 31, 2016
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After I upgraded my phone to Android 9 I noticed stamina mode felt different, mostly in terms of performance. So I charged to 100% on Saturday morning, after I disconnected I turned on stamina mode and left it on for an entire week. It is one week later and I'm now at 15%. It was mostly on standby the whole time, made a few phone calls and checked email daily,, maybe did a bit of browsing to look stuff up. But I find stamina mode works a lot better than it did, even though it is a bit laggy. It's worth it if you need to extend your battery life.