Loss of shore power for many people means the difference between having dead batteries leading to a host of additional problems or just something as simple as a refrigerator full of spoiled food. We have all seen the kids running up and down the docks and occasionally that vibration can cause the shore power cords to come loose. Even power outages to an area can cause havoc, tripped breakers, and other issues. To put it simply it is nice to know that your covered.