Hi KidJethro, they do keep me busy, don't they? Stomis, whether you buy one of our batteries or someone else's, I'd still like to help you find out why you had issues with your original battery and the four subsequent replacements. Fully-charged, our RedTops will measure approximately 12.6-12.8 volts and our YellowTops will measure approximately 13.0-13.2 volts. When any battery is discharged below 12.4 volts and is allowed to sit in that state, sulfation begins to diminish both capacity and lifespan. If you only drive your vehicle every six weeks or so, regular use of a battery tender or maintainer would be a good idea and help extend the life of any battery, regardless of brand.
If that's not practical or possible, disconnecting your fully-charged battery is also a viable alternative. A typical parasitic draw is about 25 milliamps, but given enough time, even small draws can discharge a battery. For anyone who might be interested,
this video explains how to measure parasitic draw.
CoDyHD, I'm glad to hear you are pleased with your batteries.
Jim McIlvaine
eCare Manager, OPTIMA Batteries, Inc.
www.facebook.com/optimabatteries