Phones with best battery life – updated September 2022 Apple iPhone 13 Pro Max – 4352 mAh battery, power-efficient processor, nearly 19 hours of web browsing. Galaxy S20+, S20 FE – 4500 mAh battery, 12+ hours of web browsing. OnePlus 8 – 4300 mAh battery, 12+ hours of web browsing. More items… • Sep 26, 2022