"I’ve been a loyal optima customer having purchased eight in my lifetime unfortunately the red tops used to have five year warranties when they were actually quality batteries now they are three year and if they go dead once they are no good anymore the whole reason I originally went with optima was that they were deep cycle and I was told they could be drained and charged without issue which I saw first hand with original red top and yellow tops now the stores won’t even honor your warranty and I’ve heard from several stores not only do they not recommend them they encourage customers to stay away from them I don’t know why companies wanna change a good thing other than greed"