I want to replace all my Lightning cords with this battery cable

Nomad is a company that sells ultra-rugged charging cables, made out of ballistic nylon, extra thick wire, and kevlar to make sure that your charging cable doesn’t fall apart. Its latest cable takes it a step further by adding a small integrated battery pack into the Lighting cable itself to charge up your phone even without an outlet.It costs $39.95, which isn’t cheap for a 2350 mAh battery pack
It works similarly to Apple’s own iPhone 7 battery case, where the cable charges t