They recently changed from a different company so the models are different now ill have to get some time and look into it i had 2 of them in a truck with two kicker 2500.1 amps and two 10" solo X subs batteries where a beast. I replaced 6 yellow tops with them and they lasted me till i sold the truck which was two years, i barely got 6 months out of yellow tops. I cant say how they are now as I don't own the truck anymore but a vast improvement over optima batteries.

 

Little digging later.........
Kinetik KHC1400 Car Batteries at Onlinecarstereo.com
Thats what I would go with

 

Looks like we'd want the reversed cells version ... interesting as it's $20 cheaper.

http://www.onlinecarstereo.com/CarAu..._KHC1400R.aspx

http://kinetikaudio.com/2009/product.asp?C=1&P=KHC1400

 

My Red Top is still doing fine.

 

Patience young grasshopper. Give it time. It will die lol

 

And what battery won't?

 

Flux Capacitor

 

x2

as a long time Redtop owner (I owned the first one since 2008 I think) and it went dead around 18 months later, swapped for free. well no problems since on that one but I used it on my brother's car. Not Rotary. Why? Cuz I think Rotary really kills battery faster than usual. it was a Group 34, not 35.

Then I got another 35 for free (don't ask me how), it went dead after yep, I think 18 months? Well I got it for free so I'm not complaining. After that, I was like why don't I give yellowtop a shot as it seems that it should last much longer. which it did in fact. I deep discharge it a few times, it went dead about a year later, I don't blame Optima cuz I drain it down to 1.5 v (yep, you read that right), so it's expected. Replaced for another one. I have been working so I didn't start my car all that much, on the Old Redtop, if I don't start my car for more than 2 weeks, it's dead. Now the yellowtop, a month and it's still cranks like normal. good stuff.

Probably not as good as DieHard Platinum or other good battery, but I think if you like Optima for whatever reason, get Yellowtop, forget Redtop. Redtop it's really a "starting" battery, it does not last, period.

 

I got 34r drop tray it came with been very pleased with it .. your call