Recent content by OptimaJim

Your Optima YellowTop is also a lead-acid AGM battery and your factory charger will work just fine on it. Thanks for choosing Optima! Jim McIlvaine eCare Manager, OPTIMA Batteries

Hi Paul, I appreciate your input in this thread. While many folks like to use the term “gel cell” interchangably with "AGM," the fact is, those terms describe two different technologies that should not be confused with each other.The “G” in AGM stands for “glass,” not gel. While it is unlikely a...

Vettelt193, you previously indicated you took your battery to a retailer who did not originally sell it to you for warranty service. Warranty service is generally handled by the original retailer. I understand your frustration, but I did request and never did receive your contact information or...

I watched both videos in their entirety and have a few thoughts. AGM batteries definitely are lead-acid batteries and definitely are not “gel cell” batteries, as was suggested in the first video. That is an important distinction, because many battery chargers have gel-specific charger...

Hi Vettelt193, Please PM me your contact information as well as that of your original retailer. Thanks! Jim McIlvaine eCare Manager, OPTIMA Batteries, Inc. OPTIMA® Batteries (optimabatteries) on Pinterest

Ernest, I'm sorry to hear about the problems you had. I would be interested in knowing what you believe your battery is supposed to power once your engine is started? Jim McIlvaine eCare Manager, OPTIMA Batteries, Inc. OPTIMA® Batteries (optimabatteries) on Pinterest

When recharging a deeply-discharged Optima with a battery charger in a parallel configuration with a fully-charged battery, we recommend disconnecting the fully-charged battery once the deeply-discharged Optima has been recharged to at least 10.5 volts. At that point, we recommend continuing to...

Hi Rex, I appreciate the welcome. Unfortunately, there are more than 60 different sizes of automotive batteries and we do not offer batteries that we consider “direct-fit” replacements for every vehicle, including C4 Vettes. I do appreciate your feedback regarding C4s and will pass it along to...

Hello, I noticed your conversation regarding batteries and wanted to offer some assistance. killain, no battery like to be deeply-discharged, but Optima batteries handle that type of inactivity and abuse better than traditional flooded batteries. Most of the "bad" batteries returned to us now...

Hib, I’m sorry to hear you had trouble with your Optima RedTop. While our RedTop starting batteries are more resilient to deep-cycling applications than traditional “flooded” batteries, our YellowTop batteries are designed specifically for both deep-cycling and starting applications. I also...

WhalePirot, I’m sorry to hear about your past experiences with our RedTops. I took a look at some of your previous posts and it looks like the problems you had coincided with your engine swap- http://www.corvetteactioncenter.com/forums/c4-technical-performance/46488-no-hot-start-new-starter.html...

LastOfTheV8’s, I can’t speak for other batteries, but I can tell you that the low internal resistance of Optima batteries allows them to provide power at much lower voltages. This can lead to situations where Optima batteries become deeply-discharged, well below 10 volts. When typical flooded...

Hi guys, I saw some confusion regarding batteries and alternators and I’d like to offer some suggestions that might help mitigate future issues. I don’t know how many of your drive your cars daily, but if your car only sees occasional or weekend use, you should consider purchasing a battery...