The ratio of under warranty batteries failing was something like 50 car jar 6 cells for every genuine Trojan T105. Or 50 to 12 for Us Battery GC220 3 cell units. All flooded batteries. Even the 6 cell Trojan car jars had an unacceptabally high warranty rate. I sneaked around from the counter (friend warrantying an Interstate battery at a distributor. I grinned at his warranty pallets. I got caught by the owner (open air loading dock) Threatened to call the Sonoma County sheriff. Probably less concerned about his wife and kids. Touchy touchy issue.