Heater　skiboots Putting Boot Heaters In My Skiboots?

Putting boot heaters in my skiboots? - heater　skiboots

Thus, the ski races, and this year he received a gift HOTRONIC boot heaters. This could be my last year and next year a new ski boots could reach. But I would like to install temporarily to hot start in the career of my boots, so that you can keep your feet warm for the rest of the season. How do I put in the cooler (Run the power cable) so you can remove easily.
Thank you!