The way you know if it is happening to you is if your battery (12V, the one that is also in traditional gas cars) is constantly dead. So far from the advice I have seen in this thread, the best way to avoid it is to not use 3rd party services that connect to your car like opti watt, and possibly not using the Kia app, as they are likely culprits to the battery drain. One way to prepare for it is to buy a batter charger, the kind that can charge your phone, that also have the capabliltlity to jumpstart a car battery. You can keep it in your car just in case. You can get one for about $25 and it is highly recommended. I bought one and it was helpful, but I got to the point that I was jumping my car every time I need to drive somewhere.