Hi, My dad left the country over a year ago, and parked his 2003 Prius in an older relative's garage. It's been untouched since he left, but he's given it to me, and I'm going to pick it up soon. I read that there are two kinds of batteries: one is 12V, the other is responsible for the engine ignition. What should I check first? What kind of problems should I expect with the car? It is very important for me to understand if you wrote about the 12V battery, or the other "hybrid" batteries, because I read that the 12v battery does not start the engine, but only responsible for the computers, lights, etc. Please answer if buying a new 12v is what I need in order to start the gasoline engine? Or I might need to charge\replace the "hybrid" batteries as well.. Thanks!