A perfect storm of hardware evolution and software improvement have mobile devices providing longer time away from an outlet than ever.
If you are like most folks, you remember how you had to structure your day around keeping your mobile gear running away from the power outlet.
Phones were likely to start running empty long before day's end. Laptops had to be topped off at an outlet at some point during the day to have any chance of lasting long enough. Even the newest member of the mobile family, the tablet, could start coughing before being put to bed.
That's all changing rapidly, and it won't be long until mobile device users will not even think about the time remaining on the battery.
We are on the brink of having acceptable battery life on almost all mobile devices, and we've gotten there in just the last couple of years. This improvement is the result of a number of advancements that work together to make gadgets run longer. While battery technology has improved incrementally over the years, it hasn't improved enough to deliver this advancement on its own.
Read more at: On the brink of acceptable battery life in mobile | ZDNet