Question: how much battery is in a iphone 8?
Answer: iPhone 8 review: the default option The iPhone 8 will have a 1,821mAh battery, compared to the 1,960mAh battery in the iPhone 7. The iPhone 8 Plus will have a 2,675mAh battery, compared to the iPhone 7 Plus' 2,900mAh battery. Apple says both phones should last "about the same" as their predecessors.