Anker Powerbank 347 is equipped with Anker in-house PIQ3.0 technology, (QC and PD). So it is suitable to charge a large number of devices. The capacity of this powerbank is 40000 mAh with lithium polymer batteries with a maximum output of 30W via USB-C and 18W via USB-A.  A combination of 10 safety features that work together to provide the ultimate protection for your devices.