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Testing Apple Watch Series 4 half marathon battery life with cellular off: over 50% after 2 hours - 9to5Mac
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Is your Apple Watch battery worn and in need of replacing? Here's how to tell without taking it off your wrist | ZDNET
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Amazon.com: WAVYPO Battery for Apple Watch Series 1 42mm, High Capacity Replacement Battery for Watch Series 1 A1579 A1554 A1803 (1st Generation) with Repair Tool Kit : Cell Phones & Accessories
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3 years later, my Series 3 battery has taken a little bit of a hit. Still going strong! : r/AppleWatch
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Amazon.com: E-YIIVIIL New Replacement Battery A1850 Compatible with Apple Watch Series 3 42mm GPS + Cellular Version with Tools : Cell Phones & Accessories
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