Apple's iPhone 8 Plus and iPhone X have Superior Battery Life over Samsung's new Galaxy S9 - Patently Apple
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Battery case for iPhone 6s/6/7/8 6000mAh, kilponen Rechargeable Charging Case Extended Battery Pack for Apple iPhone | Walmart Canada
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Smartphone Battery Life May Be on the Decline Because Lithium Ion Batteries Can't Keep Up With New Technology - MacRumors
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iPhone 8 Plus Battery Life DRAIN TEST in 2022 | 8 Plus Battery Health 83%, 81%, 80% Backup Test 2022 - YouTube
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Real-life test claims iPhone XS battery life isn't as good as Apple says, but it's better than rivals
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iPhone 8 Plus New Battery vs Original Battery Life Drain Test in 2021 | 8 Plus IOS 14.4 Battery Test - YouTube
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