Hi Bob-you can buy them on Ebay through a dealer called Battery-ehome (irenehang). I get mine through her and she has them shipped directly from the warehouses. As you say, they are more than 1 year old, but are top quality, some with 10 year life span.
I got 4x40 Ah agm batteries that normally sell for almost $300 each for $50 each plus freight.
