BATTERY WOES... HELP NEEDED.
Post Fiend
Joined: Feb 2011
Posts: 29,909
Likes: 1
From: Virginia
Great! Now you won't have to stress hoping the truck will start every time you get in it.
Super Moderator
Joined: May 2004
Posts: 29,380
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From: Central Coast of CA
You should always replace both batteries when it's time. The one you don't replace will shorten the life-span of the new one you're installing.
It's too late now, but for what it's worth, Costco is the only place I'll buy my batteries at, unless they don't carry the one I need.
Stewart
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Senior User
Joined: Jun 2004
Posts: 216
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From: Gig Harbor, WA
Well, four years ago I got two Sears Platinum AGM'S. Ridiculously priced. But, 930 CCA's and a great warranty. My criteria, due to the amount of travelling we do, had something to do with easy replacement at any of the gazillion Sears stores. Humm, did I just hear they are closing stores...
Senior User
Joined: Nov 2010
Posts: 450
Likes: 1
Those Sears batteries are beasts, I have one in my Mazda and love it.
Anyone one else read that a high CCA isn't always the best choice? I've read that the higher the CCA the lower the reserve. So, you may have 900 CCA, but it will only last 30 seconds cranking. Where an 800 CCA might last 45 seconds. **those values were made up** Another note, I'm pretty sure I read the diesel guys use under 800(or was it 700?) CCA to start, so anything more is overkill. That said, those AGM Sears batteries are very nice and I might put them in if I have the $$ when the time comes.
Anyone one else read that a high CCA isn't always the best choice? I've read that the higher the CCA the lower the reserve. So, you may have 900 CCA, but it will only last 30 seconds cranking. Where an 800 CCA might last 45 seconds. **those values were made up** Another note, I'm pretty sure I read the diesel guys use under 800(or was it 700?) CCA to start, so anything more is overkill. That said, those AGM Sears batteries are very nice and I might put them in if I have the $$ when the time comes.
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Post Fiend
Joined: Feb 2011
Posts: 29,909
Likes: 1
From: Virginia
Those Sears batteries are beasts, I have one in my Mazda and love it.
Anyone one else read that a high CCA isn't always the best choice? I've read that the higher the CCA the lower the reserve. So, you may have 900 CCA, but it will only last 30 seconds cranking. Where an 800 CCA might last 45 seconds. **those values were made up** Another note, I'm pretty sure I read the diesel guys use under 800(or was it 700?) CCA to start, so anything more is overkill. That said, those AGM Sears batteries are very nice and I might put them in if I have the $$ when the time comes.
Anyone one else read that a high CCA isn't always the best choice? I've read that the higher the CCA the lower the reserve. So, you may have 900 CCA, but it will only last 30 seconds cranking. Where an 800 CCA might last 45 seconds. **those values were made up** Another note, I'm pretty sure I read the diesel guys use under 800(or was it 700?) CCA to start, so anything more is overkill. That said, those AGM Sears batteries are very nice and I might put them in if I have the $$ when the time comes.
Senior User
Joined: May 2010
Posts: 351
Likes: 0
From: South Texas/RGV
Capacity, usually measured in Amp-Hours, is more a factor of the battery's overall physical size when comparing the same design.
Senior User
Joined: Jun 2004
Posts: 216
Likes: 0
From: Gig Harbor, WA
Interesting. I don't know about all the technical stuff, plate size, lower CCA better than higher... But, I can tell you they were recently tested and after 4 1/2 years are in great shape, spins the old lady over very crisply and should last a good long while. Hope everyone had a terrific new year! 
Last edited by gmcbride; Jan 3, 2012 at 03:23 PM. Reason: stupid mistake
Thread Starter
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You'll shoot your eye out
Joined: May 2011
Posts: 3,281
Likes: 4
From: San Antonio, TX
You really needed two, but just didn't realize it.
You should always replace both batteries when it's time. The one you don't replace will shorten the life-span of the new one you're installing.
It's too late now, but for what it's worth, Costco is the only place I'll buy my batteries at, unless they don't carry the one I need.
Stewart
You should always replace both batteries when it's time. The one you don't replace will shorten the life-span of the new one you're installing.
It's too late now, but for what it's worth, Costco is the only place I'll buy my batteries at, unless they don't carry the one I need.
Stewart
Lead Driver
Joined: Mar 2010
Posts: 5,250
Likes: 11
From: West Virginia
I had been told to always go with the highest CCA you can get for these trucks, so my original batteries (7 years old, about as long as you can expect a battery to last in 4 season country) crapped out and I bought interstate platinum's. They were pricy as hell, I think both of them with cores was near $400. And now I'm sitting here typing this with 2 dead batteries in my driveway. Never had any problem starting with the motorcrafts even when I left it sit a few days, but this is the second time I've needed a jump in 3 days... I need to get these batteries tested and test for a short, I guess.