Hi Chas,
I apologize for the slow response. I was in Bowling Green all weekend for an event and I’m just getting caught back up with my work now. I can confirm a quality difference with our newer batteries- they are better and many of the “bad” batteries returned to us now are just deeply-discharged and work fine, when properly recharged. The quality of the batteries produced in Colorado was excellent. Our new facility is state-of-the art, with increased automation and newer equipment and improved processes to further improve quality and reduce variability. These improvements have further increased quality, consistency and the reliability of our batteries. You can view a video of our production facility here-
http://www.optimabatteries.com/contact_us/mexico_video/
If anyone has any other questions, I’ll do my best to answer them.
Jim McIlvaine
eCare Manager, OPTIMA Batteries, Inc.
www.facebook.com/optimabatteries