About 6 months ago my 2011 Prius battery was dying. It took forever to turn on, lights were dim, etc. I took it in for an oil change about a month prior to this and they had warned me the battery was in the "yellow". So, I knew it was on its way out. When it finally started dying I took it in to get it replaced. Since then it has been fine. Until now. The car key fob battery was dying now, so I replaced that too. But, when I went back to my car to turn it on nothing worked. Absolutely nothing turns on, no lights, door locks, cabin light, the car doesn't even honk. Could they have installed the battery in a way that could cause this? Is it something else, the inverter?