whats the difference and what should i get for my couple if i have a sound system and 12v accessories?

for instance I heard from someone yellow top is good..so them i looked into them and there are many models..which is right for me?

D51
d35
d75/25
d31A
d34

 

yellow is the one you need....blue is for marine and i can't remember what red was..

 

yeah but what model yellow top?there are so many..i have multiple amps in my car not to mention lots of 12v accessories..what should i be looking for?and why are people looking for reverse terminal posts?i saw that on previous threads..

 

Red is standard, yellow is mixed regular use + deep cycle, blue is full deep cycle marine.

Go to the Optima site and look for your car. Depending on your power needs you probably want to go for the highest CA/CCA rating that will fit in there with the reverse posts.

 

You want a yellow top, it is deep cycle. Red top IS NOT deep cycle, although it has higher cold cranking amps. You want a DEEP CYCLE battery meaning, you can drain it completely, jump it, and it will recharge to full capacity.

Blue tops and Yellow tops are exactly the same except blue's are meants for boats, and accordingly they have terminals in different locations.

There are actually several Yellow Tops that fit the G35.

If you search for "Yellow top optima" you will find all kinds of info.

There was a thread about what type people were using over in the Sedan forum. I will look for the link...

 

woah sorry for the duplicate info there, me and TTRANK posted simulatenously!

 

why would someone want reverse posts?

 

https://g35driver.com/forums/showthr...llow+top+sedan

 

I think it's becasue the Optima Yellow Top's with "Reverse Terminals" are where our stock one's are, this way you won't have to extend cables.

They also make some with two different terminal sets.

 

Yea, just saw that too. LOL

I blieve the ones that fit are the 51 and 34. Don't know what the numbers actually mean, it is not a size thing. If you call a local optima dealer they can tell you which one will fit. That is what I was going to do but they were backordered when I was in the market.

 

Red top 34r reversed terminals. 38.8 lb. 10 "L X 6.8" W X7.8"H
Yellow top 51r OR D35R reversed terminals 27 lb. 9.2 "L X 5"W X 8.9 "H

Those are the way to go according to GEE_PASTA who seems to know his ish

 

oh duh..i didnt even realize that our battery terminals cables would have to match the new battery...so I guess i know that i need reverse post..but which model?

 

In that case you should go for the 34r. Let us know if you can get it.
I just went back and looked, that was the one I could not get becuase it was backordered a couple months back. They told me that the Army ordered a ton of them and set Optima back. No one in Phoenix could find one for me or even give me a date.

 

i thought the 34r is red top and thats not whats recommended for people with high end audio systems etc..i was looking at yellow top..now i am focussing on the 35r and 51r..both seem to be on backorder...i would just get the high crank battery the 51r...that should be fine i guess guys right? thanks for everyones help so far

 

everyone is saying that the optima yellow top d51r is not in stock..some saying its discontinued...


can anyone give me the dimensions of our stock battery?(LxWxH)