Yes that's right. I ordered one at Walmart online, for that reason. The next day I got a message saying it was cancelled, with very little explanation except that it wasn't in stock. (Then why did the site show me they were IN STOCK and ready for pickup "today"?) I ordered one at another Walmart in town which supposedly had
four in stock and ready for pickup. Hours later
that was cancelled with the same cockamamie explanation.

The clerk admitted there's a definite problem with ordering online.
Now here comes my question: The next day I walked into a Walmart directly and found several MAXX-35 batteries on the shelf --
no "N" at the end. Everything else looked right -- 640 CCA, 3 year warranty, and the sticker on the
rack even said MAXX-35N. Is it possible they changed the sticker on the battery to not show the N, and more importantly, is it the same battery? I emailed EverStart with that question days ago but got no response yet. Note: Consumer Reports says N stands for North. I'm in Maryland, for what that's worth.