poor quality

I have bought 3 car batteries in the last 4 years from Battery center .The average battery lasts customer a year and half .<br> My last battery lasted 31 month'which is just over the 1year guarantee for Raylite . Normally I just replace my battery and get another one at battery center .But now I am starting to look around , maybe a reconditioned car battery might last longer .I am starting question how good are battery center batteries ??