How Long Does 20 Percent Battery Last On Iphone 7. As few people actually use that much battery most will get about 2 years out of a battery. I always bank on 1 day of use for the 47 and 15 - 2 days use for the Plus model.
Apple estimates that the iPhone will lose 20 percent of its capacity a darn sight less than 100 percent after 400 full charge and discharge cycles. I take my iPhone 6s off charge at 530am on a week day morning. Apple products have really good battery life.
Facebook is at 30 for me.
Phone was at 1 last night with 10 hr on screen. This battery life calculator estimates how long a battery will last based on nominal battery capacity and the average current that a load is drawing from it. Theres no absolute rules to follow. That changes the usefulness of this.
