mine is a 650 and i am going to change it after this post... cause i dont think its gonna get me through this winter.... anyone know what the 4.3 came out with from the factory....

C.C.A.===== Cold Cranking Amps

 

I searched for a little bit and found out atleast I'm pretty sure that they came with a 525CCA battery. I won't be able to tell you what mine is because I don't get it back until this weekend . What make's you think it won't last threw winter?

 

I had an 800CCA Deka battery in my Bravada when I traded it. My Rainier will be getting a new battery in another year or so and I'll use the other one for a new bench test battery. I'll be replacing the battery in my Rainier with a Deka as well, probably the same 800CCA as I had in my Bravada! I jump start quite a few people in the winter!

 

720 cold cranking Amps (900 cranking Amps) Duralast gold from autozone. Biggest battery i could fit in my battery tray

 

I am at 650cca and 800ca. It has worked fine for me in the UP winters with jumpstarting many a people, I never had a problem. It is an AC Delco battery. I will be upgrading eventually to something with a dual post design.

 

i have an optima yellow top and its i think around 900 or more cca im not sure but i have had the battery for a year now and never had a single problem with it i jump start alot of vehicles out in az and those that get jumped i always see cheap batteries that never last why spend the amount on several cheap ones when you can spend one decent amount a good one that will last a long time, right??

 

I installed an AutoZone Duralast Gold, 720 CCA, to replace the AC/Delco factory battery. The thing to remember is that it is the 'cold cranking amps', not just the 'cranking amps', that matters. I've always believed in getting the most CCA's that you can.

 

yea i belive to get the most CCA you can too.. the 650cca is about the smallest i have had,, i know this winter its gonna be spinning the starter real slow,, when it dosent start i will be wishing i had more cca's... still does anyone know for sure what comes OEM, thanks

 

Depending on which option packages you have, the two batteries used were, I believe, 550CCA and 650CCA.

 

Unless you see -4 or colder on a regular basis, you won't need anything more than the stock battery...

Personally, I like to have the highest CCA possible... Heck, I had a 925CCA in my old '85 S10... (Which started on a POS battery with 250 cranking amps...)