| http://www.w3.org/ns/prov#value | - Rarely do new cell phones or tablets last a day with moderate use - especially when wifi is on all day.Devices such as cameras, MP3 and MP4 players are used infrequently than compared to cell phones and tablets meaning that the battery power will probably last longer than a day.However, all these devices have a huge problem: The battery can die when you really need it.Take a picture, listen to mus
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