Never carry a charging cable again. The mophie PowerStation Plus Mini Universal battery combines a Compact design, premium feel and Built-in switch-tip charging cable that charges both Apple and Micro USB devices. This 4,000Mah battery gives you more than one additional charge on your smartphone or will keep your tablet charged longer for more reading. Charging on-the-go is now easier than ever. mophie products go through rigorous testing. Each battery is tested three times to ensure peak performance and safe operation. This is the reason why mophie is the #1 and most trusted brand in portable power.