PowerTank 20,000 is Cellularline’s powerful, fast and ultra-small portable charger. In fact, PowerTank 20,000 is made with innovative technology in its high-density lithium polymer cells which offer the same power but make PowerTank 20,000 up to 40% smaller than classic powerbanks with lithium-ion cells. Small yet powerful, PowerTank 20,000 is perfect for taking all the power you need with you wherever you go and quickly charging your smartphone, even several times in a row. What’s more, thanks to the dual USB-C and Micro USB port, you can charge your PowerTank 20,000 directly with the USB cables used for most phones on the market. PowerTank 20,000 is also equipped with a simultaneous fast charge and overheating control system that lets you charge your devices with the utmost convenience and safety.