2017 Toyota Camry Dead battery

I just brought a 2017 Camry From  Toyota , When I went to test drive the car the battery was dead. The shop came out to get it started. They drove it to the front were it died. They got it started again. I took it for a 25 min test drive and when I shut the engine off back at the dealer it would not start. They said they would look into what the problem was. I bought the car and  they keep it over night. I was told they checked every thing, Battery Load, (they said they even change the battery) the cars charging system and all is very good now, I drove the car the next day for over 60 miles, the next day I went out to the car and the battery was dead. I had the car towed back to the dealer and I will tell them I don't want this car. Could this be an electricity draw problem? Do you think this car is a lemon ? Would you too ask for a different car?