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 VoltageBoost technologies combine to ensure the fastest possible charge up to 2.4 amps. MultiProtect Safety System Surge protection, short circuit prevention and more advanced safety features keep you and your devices safe. Unrivaled Quality Designed and built using only the highest-quality chips and hardware.