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Does Your Battery Life Stink? Try Some High-Tech Workarounds

It's enough to make you want to drop everything and race for the nearest power outlet: Your workday isn't even done, and your smartphone or laptop battery is already in the red zone.   If you're hoping that techno-progress will dispel that depleted feeling, you may be in for a long wait. Battery life is constrained by limitations in chemistry, and improvements aren't keeping pace with demands from modern gadgets.   We're still dependent on the venerable...

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