mazder, if your vehicle is stock and driven daily, an appropriately-sized RedTop should work just fine. If you are running significant aftermarket accessories, like a large stereo or winch, we strongly recommend a YellowTop. RedTops are SLI (starting/lighting/ignition) batteries that offer plenty of cranking amps, but are not designed or warrantied for deep-cycle applications, including winching.
The quality of our batteries has always been excellent and continues to improve. Many of the “bad” batteries returned to us now are just deeply-discharged and work fine, when properly recharged. In many of these cases, the owners probably didn’t realize that most battery chargers will not recognize or charge any battery that has been discharged below a certain voltage level. The threshold varies from one charger to another, but can often be as high as 10.5 volts. If a battery (of any brand) has been discharged below this level, the charger simply will not work. The parallel charging instructions explained in this video can effectively recharge many of those batteries-
YouTube - Tech Tips 3: Recovering a Deeply Discharged Battery
This is not a situation unique to Optima, in fact, some other manufacturers have dealt with this issue by voiding the warranty on their batteries, if they are discharged below 10 volts, which is a real concern if you plan on winching. We decided to make the YouTube video, explaining how to recharge deeply-discharged batteries. You can read our warranty information here-
Optima Battery Warranty Information - Spiralcell AGM 12V Batteries
The key to long battery life, regardless of brand, is to make sure battery voltage is always maintained at or above 12.4 volts. When batteries are discharged below that level and allowed to sit, sulfation begins to diminish both capacity and performance. That makes a quality battery tender or maintainer an excellent investment for any vehicle that is not driven daily. While our batteries can be found in a vast array of military applications, I’m not allowed to discuss any of them. However, I am allowed to post links to comments made by others-
CamaroZ28.Com Message Board - View Single Post - Best battery, optima or not?
If anyone has any questions about our batteries, I’ll do my best to answer them.
Jim McIlvaine
eCare Manager, OPTIMA Batteries, Inc.
Optima Batteries | Facebook