Re: Wet Cell versus AGM batteries for old cars
Posted by BigKev On 2011/11/21 12:43:42
Just a few comments and my 
from years of using Optima batteries in import cars with largish stereo systems (aka misspent youth). The Yellow Top ones were what everyone used because you could run the stereo system for a long time with them cause they are deep cycle batteries. But they don't like supper high instant draws (like starting a car), and the fast charges. The Yellow Tops are like good BBQ....Low and Slow.
The point is that I would see people get 12-18 months max out of a Yellow Top Optima cause they are not really designed to be "starter" batteries. They are made a Aux batteries where the draw is even, and so is the charging.
Now the Red Tops are the opposite, they are specifically made as Starter batteries and are designed as such. Once I switched over to Red Top I was getting 36-48 months on one of them. But then again, unlike the Yellow Top which can be drained down to empty, and recharged back up over and over, the Red Tops are much more like a traditional WC. They don't like to to be drained all the way empty, as this kills their lifespan.
Red Top = Starter Battery.
Yellow Top = Deep Cycle, Trailer Battery. Also used in multiples for electric/hybrid cars.
from years of using Optima batteries in import cars with largish stereo systems (aka misspent youth). The Yellow Top ones were what everyone used because you could run the stereo system for a long time with them cause they are deep cycle batteries. But they don't like supper high instant draws (like starting a car), and the fast charges. The Yellow Tops are like good BBQ....Low and Slow.The point is that I would see people get 12-18 months max out of a Yellow Top Optima cause they are not really designed to be "starter" batteries. They are made a Aux batteries where the draw is even, and so is the charging.
Now the Red Tops are the opposite, they are specifically made as Starter batteries and are designed as such. Once I switched over to Red Top I was getting 36-48 months on one of them. But then again, unlike the Yellow Top which can be drained down to empty, and recharged back up over and over, the Red Tops are much more like a traditional WC. They don't like to to be drained all the way empty, as this kills their lifespan.
Red Top = Starter Battery.
Yellow Top = Deep Cycle, Trailer Battery. Also used in multiples for electric/hybrid cars.
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