bestatchess, I'm sorry to hear you elected not to take advantage of your free warranty replacement. Do you remember the voltage of your battery at the time you were having trouble? The reason I ask, is because many battery chargers will not recognize or charge any battery, if it has been discharged below a specific voltage level. Many of the “bad” batteries returned to us today are just deeply-discharged and work fine, when properly recharged (my wife's truck runs on a “dead” YellowTop returned to us at 7 volts). This is not unique to Optimas, in fact, other manufacturers have dealt with this by simply voiding the warranty on their batteries, if they are found to be discharged below 10 volts. We still honor our warranty on those batteries, but we did create this YouTube video, which explains a parallel charging technique that can recover those batteries-
If you do elect to go to a dual battery setup in the future, those batteries need to be identical in size, age and type.
TurboDA6 (and others), I appreciate your feedback regarding our production facility and will certainly pass it along. If anyone has any other questions or concerns about our products, please don't hesitate to ask.
Jim McIlvaine
eCare Manager, OPTIMA Batteries, Inc.
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