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Samsung Galaxy S21 Ultra Battery Drain Bug Discovered! Possible Fixes and Battery Saving Tips | iTech Post
Why does the Samsungs21 battery drop super fast? There are not much apps running in the background. - Quora
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Samsung Galaxy S22 Ultra lags behind S21 Ultra and is demolished by Apple iPhone 13 Pro Max in battery life comparison - NotebookCheck.net News
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Worried About Your Samsung Galaxy S21 Battery Draining Fast? Major Reasons, How to Fix It | iTech Post
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