Originally Posted by jakenbake

Well if you want to justify it more....I had a Lexus battery in my car that was less than a year old and it would always run down and die. I had to jump my car at least once a month. The tiny battery can handle a prius but there are too many electronics in the RX that stay on a while after the car is off for the tiny battery to handle. I also have added quite a few extra things that put a little more strain on the baby battery. I had that battery tested a couple times because I figured a new battery shouldn't be doing that. Each time it was tested it passed. It even died once when I went to pick up my car from Lexus after an oil change. I paid my bill and got in the car and it was dead right there in the service driveway in front of all the service advisors and they still said there was nothing wrong with the battery. To wrap up my story....I bought the yellow top 4 or 5 months ago and not once have I had a dead battery.