Store brand Exide batteries

[sanibel sailor]

I saw at my local Rural King store that they had Exide brand batteries. They are store labeled. I called Exide and they say they are the same as their branded batteries. Prices very attractive at $120 for a 4D, $140 for an 8D and 80 bucks for a group 31. They also have a $10 rebate per battery for up to three batteries right now. These are heavy duty tractor batteries but not specifically deep cycle. Anyone try these? I am thinking about using either a 31 or a 4D for a separate starting battery.