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, Mobile Phones Marketing Professional. The average smartphone (powered by a 1500mAh battery) will have a normal battery life of around 10 to 14 hours depending on the usage you have. The main drains will be: screen, data connection, games, music and voice usage. Views Â· View Upvotes.
The iPhone 6+ has the best battery life by far, mostly because it's so much larger than older models, making room for a bigger battery. (As a point of comparison, the Samsung Galaxy S5 supposedly gets 480 hours of battery life in standby mode.) It's not as if people aren't hankering for better battery life.