For telephone owners, battery life has become a primary concern. As we do more with our phones over more hours, one of the key features an average buyer looks for after screen size is the importance of all-day battery life on a single charge. According to the study of Kantar's Worldpanel ComTech Q3 2019, battery life is even more important than an excellent camera. The same concern applies to longevity of the battery throughout your device's lifetime.
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