Astonishing Size PowerCore 10000 is incredibly small and light for its large capacity. It's smaller than a deck of cards and as light as a baseball, but can charge a phone over three times and most tablets once. Fast-Charging Technology Anker's exclusive PowerIQ and Voltage Boost technologies combine to ensure the fastest possible charge up to 2.4 amps. Multi Protect Safety System Surge protection, short circuit prevention and more advanced safety features keep you and your devices safe. Unrivalled Quality Designed and built using only the highest-quality chips and hardware. Worry-Free Warranty At Anker, we believe in our products.