If there’s one things that just couldn’t develop at the pace of Moore’s law, its the evolution of battery technologies. Where chips are doubling in power every 3 years, battery power just gets 10-20% better.
The solution for the most is to carry a portable Battery-pack for the extra juice. These portable chargers are often rated between 4,000mAh to 11,000 mAh (which translates to 2 to 5 full charge cycles of average modern smartphone). This might be enough for few, but these battery packs take long hours to charge back. Ideally, a 2A charger would take 12 hours to charge 10,000 mAh battery. And unless you really plan well ahead-of-time, you would end-up carrying JuicePack which is partially charged.
FuelCells are way better than Batteries
FuelCells can carry way larger energy for the same mass/size. FuelCells operate on gases like Hydrogen or butane, which generates chemical energy, in a controlled system. This chemical energy (heat) is converted into electricity within the Fuelcell, making it work just like a power plant.
FuelCells, though have been round for decades, were never really ultra portable, affordable and safe; all at the same time. However, this is changing with upcoming products like Kraftswerk, a kickstarter based crowd-funded project.
Kraftwerk, which means “power station” in German, doesn’t need to be connected to a power outlet. But it can provide weeks of uninterrupted power to your smartphones and other portable electronic devices on a single refill. Measuring at just 3 x 4 inches, 1.18 inches thick and retailing at $149, might be the best combo of safe, portable, affordable fuel cell ever. It delivers continuous output of 2 watts with a peak power output of 10 watts.
To give you a fair idea, just one filling of gas provides enough energy to charge an iPhone about 11 times. And this gas can be refilled in just three seconds via any standard Lighter refill pack.
Kraftwerk will be ready for shipping by February 2016, at a retail price of $149.
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