My 2007 RX350 start up engine issues ie: it has a symptom that I have to crank up a few times ie: 3-5 times before engine could start up, does anybody know what was a problem causing it?

Just want to share with you, I have found the problem, this is an indication symptoms of a wear and tear of the original factory made by Panasonic. This original car factory battery came with vehicle that I purchased in Nov 25, 2006. The battery was completed out of service in Oct 13, 2015 with a symptom failed to crank on the 2nd tried at work place in parking lot. This car I drive everyday to and from, and one day it quitted to start. Solution, is to replace a new 24FS-DLG with CCA 575 battery. It is running fine since then, and the cranking issues so many times are completely gone.