Mobile auxiliary battery for external power supply of smartphones and other mobile devices. The power pack provides an energy boost on the go. Power Delivery technology guarantees extremely fast charging, up to 5 times faster than with conventional charging technologies. Qualcomm Quick Charge 3.0 technology also ensures fast charging, surpassing traditional methods. The USB-C jack allows for charging and discharging currents with Power Delivery of up to 3 A, ensuring maximum charging speed optimized for the device. Connected devices are automatically detected and charged optimally. It features high-quality premium workmanship and performance. Certified cells guarantee the highest safety standards and quality. Recharging smartphones and other mobile devices is easy. It is the ideal companion for energy "to-go": simply connect your smartphone and power pack with a cable for a quick energy boost. Charging can be done via a USB charger (not included) using a micro USB charging cable (not included) or a USB-C charging cable. The maximum output power is 18W/3A. An integrated LED capacity indicator shows the charge level. It includes overcharge protection, deep discharge protection, and short circuit protection, making it universally usable. Consumer notice: Please refer to the product information and the operating instructions of the respective manufacturer to determine if your device is Quick Charge or PD-capable.