1. Open the zipper on the back of your Big Hug
2. Connect the battery to the Big Hug and twist the connector to lock it
3. Open the velcro of the battery pocket
4. Slide the battery into the battery pocket
5. Push the power button to turn on the heat and push again to set your desired heating level.
6. When using it for the first time, connect the charger to your Stoov® to charge it.