Mobile auxiliary battery for external power supply of smartphones and other mobile devices. Power Pack provides the energy boost on the go. Power Delivery technology guarantees extremely fast charging, up to 5x faster than with conventional charging technologies. Qualcomm® Quick Charge™ 3.0 technology guarantees extremely fast charging, faster than with conventional charging technologies. USB-C jack for charging and discharging currents with Power Delivery of up to 3 A. Guaranteed maximum charging speed with charging optimized to the device. Connected devices are automatically detected and optimally charged. High-quality premium workmanship and performance. Certified cells guarantee the highest safety standards and quality. Easy recharging of smartphones and other mobile devices. Ideal companion with energy "to-go": for new energy boost simply connect smartphone and Power Pack with cable. Easy charging to USB charger (not included) via micro USB charging cable (not included) or USB-C charging cable. Max. Output power: 18W/3A. Integrated LED capacity indicator. Overcharge protection, deep discharge protection, short circuit protection. Can be used universally. Consumer Notice:. Please refer to the product information, the operating instructions of the respective manufacturer or the Internet to find out whether your end device is Quick Charge or PD-capable.