Batteries from Wal-mart, Sealed & AGM ??? I saw batteryies at Wal-Mart today that say AGM & sealed. To my surprise they also had a bottle of acid included. From what I could figure, You need to put the acid in, then you seal the battery yourself. This doesn't sound like the ones I've been seeing on the internet, that you don't put anything in, I figured the ones on the internet were sealed from the factory. Also the Wal-Mart jobs have a 1 mo. replacement & 3 mo. pro rated warranty, almost like no warranty at all. I think the ones from the internet had 1 yr. replacement warranties. Are these the same as some of you guys are using, Do you install the acid yourself ?? Just trying to get THE REST OF THE STORY.