If you want a great battery get an optima, other than that it's pretty much all the same to me.
Ive had my red top for 5 years no problems...
I've been using a blue optima for about 6 years now and still going strong... Yes yes I know its for marine applications
I used to have a red top optima in my race truck for vibration reasons but for this car I wanted something that would run the compressors (if needed) subs, etc.... while the car wasn't running and still have the balls to kick the motor over for a start. That is why I went with the yellow top, kinda like a deep cycle for your car. You can drain the hell outta it and it will still start your car for you. That and it last two times longer than your conventional battery.
optimas are good. thats what i use
optima blue tops are marine-think of blue water and yellow are deep cycle 2] having the ground LARGER than the power is ALWAYS better in terms of car audio- electrons move negitive to postive , if my amp takes a 4 gauge wire for power the ground gets a 2 guage, this alone has gotten rid of some of my dimming
I have had a red top 34R in my R32 for almost 2 years now, no problems at all.
have an optima red top it starts the car at -40 weather no problem, only catch is if you kill it the batt will never be the same iv gone through 2 so far in the last 2 years but with 10 year or more warranty who cares.
They are not worth the money, I work at a local auto parts store and have Two Red Top Batteries sitting on my battery pallet waiting to be shipping out and recycled. If that Red top wasn't made in Colorado, it's junk.
they used to be good but over the last 5 years or so they have dropped in quality. I have purchased 3 red tops and 4 yellow tops for customers and each one failed prematurely.
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