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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.
In the meantime, battery cases and replacement batteries remain an essential part of keeping our digital assistants running strong. Most cell phone battery charges will not last more than a day or so, depending on usage. Tips on extending cell phone battery life: Keep your battery between 20% and 80% of its full charge as much as possible