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Power your personal devices while on the go with the Tether Tools Onsite USB-C 30W 9600mAh Battery Pack. The USB-C 30W PD battery pack is compatible with some cameras, phones, tablets, and small-wattage devices and ensures that whether on-location or on the move, battery concerns will not bring your shoot to a halt. It's also a great companion for the optional Onsite Relay Camera Power System.