It can deliver a massive 22.5W of energy and can be used to charge two devices at the same time thanks to its QC 3.0 USB port and the Power Delivery function (PD 3.0 20W). This power bank will fast charge your compatible iPhone from 0% to 50% in up to 30 minutes (when used with a MFi Type-C to Lightning cable - not included). Don't worry about the battery level, the 10000mAh PD 701 Power Bank has a digital display that accurately shows how much power is left and so you will know exactly when to recharge it. Due to the rapid recharge function, full recharge takes up to 3-4 hours through the Type-C PD port (when used with a PD wall charger and a Type-C to Type-C cable). Protection functions keep your device safe from short circuit, overcharging, overdischarging, overcurrent.