Optima 34R batteries do not have provisions for venting tubes. Only group 27, 51, 78, 34C, and 31 Optima batteries offer venting provisions. If a battery was installed in an enclosed space (passenger compartment or trunk) by the manufacturer, it should have venting provisions from the car manufacturer. If a battery has been relocated to a non-stock area, battery boxes and relocation kits offered by aftermarket manufacturers (not Optima) generally include provisions for venting a battery. If you have any other questions, please don't hesitate to ask.
mu.zeitgeist, I'm sorry to hear about the problems you had with your YellowTops, that does sound very unusual. Our inventory generally turns over relatively-quickly, which usually ensures fresh batteries, although that's not always the case with every retailer. Your battery should have been covered under warranty and I apologize for the inconvenience that situation may have caused you. The age of all of our batteries is very easy to identify, as the date of production is stamped into every case in a four-digit code. The first digit is the year of production and the next three digits are the day. That means batteries being produced today are stamped "0110."
The typical key-off load for most vehicles is about 25 milliamps, although some vehicles have key-off loads that are significantly higher. This can be caused by aftermarket accessories like a car alarm or it can simply be related to all of the computer systems installed on some newer vehicles. Many newer ZO6 Corvettes have been known to discharge their battery within a matter of weeks. A key-off load that exceeds 100 milliamps indicates a significant draw that needs to be addressed, either by reviewing the electrical system or by regular use of a battery tender or maintainer. This video explains how to measure a key-off load-
If you have any other questions, please don't hesitate to ask.
eCare Manager, OPTIMA Batteries, Inc.
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