difference between all the optimas?

[bikinpunk 10+ year member]

Seems to me like I read once that the Red tops are good for "engine running" applications, and yellow tops are good for "engine off". //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[audiolife 5,000+ posts]

It depends on the application. Contrary to what others in this thread have said Optimas have a very low internal resistance...making them Excellent at supplying a quick burst of power...Why do you think many of the Top SPL competitors use G31 Yellow Tops.
And that is another thing. There are several different sizes of both Optima and Kinetik. So don't compare a G34 Yellow Top to a kinetik 2400. They arent even close to the same.

Kinetik has a slightly higher AH and RC rating than the optima making the Kinetik a slightly better choice for a "daily SPL battery" Where as the low internal resistance of the G31 YellowTop's makes them an Excellent "SPL Burp Battery"

And now to address the Burning up alternators? Never heard it man. I have a 250 amp HO alt and a Yellow Top under the hood. Could you explain to me why my alternator will Fry?

and Yes I do have a 2004 Chevy Silverado. And Also I ran the yellow top with the stock alt for about 6-8 Months.

well put but when you get to some of the larger cells the difference is 20% to over 40%. if you look at the results of the contests (even outside of 16v classes) kinetik still does pretty good

 

[SSon22s 10+ year member]

Are the yellow tops ok under the hood?

 

[Chevyaudio 5,000+ posts]

Yes.