By taking steps such as disabling background service updates when you lose connectivity, or reducing the rate of such updates when the battery level is low, you can ensure that the impact of your app on battery life is minimized, without compromising the user experience.For more take a look here. Check which part of your app is consuming the thread profiling with trace View. And you also need to aware of your app performance.
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solved How can i save Battery power using in writing app