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Discussion Starter #1
I've had my truck 37 months and I went out yesterday and got the dreaded click click.
I kinda knew it was going to happen it had been hesitating when starting and windows were slow to role down just on battery.

Both batteries read in the low 12v range with the passenger side being lowest and when my wife tried to crank the passenger went to the low 9's and the driver to the upper 9's.

Looked around and ended up going to Costco primarily for the warranty but also the price. Interstate 850cca units. Pretty easy transaction as I had already pulled out the old ones.

Went home dropped them in and everything works better. Hopefully the Interstate batteries hold up.
 

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Thanks for the information. Interesting that the batteries are connected in parrell and measuring different voltages?. Do your new batteries measure different voltages when charging? I think this could cause your batteries to fail early. My batteries are over 60 months old and I'm looking to change them before this Northern Canadian Winter.
 

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How much were the Interstate at Costco? Are they green/white or black?

Were your old batteries a perfectly matched pair by brand, size and purchase date?

Corroded cables can contribute to an imbalance in battery voltages so you might want to check that but it might just be your one battery was worn out.
 

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Discussion Starter #4
The old batteries were almost a volt apart and were the factory batteries that came with the truck. One thing of note 3 of the 4 terminals had those gasket/pads on them and the most corroded terminal was the one that did not have it.

The new batteries are about the same voltage now.

The Costco/Interstate batteries have a 3 year exchange warranty, are black and cost about $95.00.

Everywhere else I looked (including my Ford dealer) was $150.00 and higher. Costco has a great reputation as far as customer service goes so if I have an issue down the road I'm pretty confident they will take care of me.
 

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$95 is a great price and you are right about Costco warranty/exchange.

Those felt pads really do make a difference.

Thanks for the info.
 

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I have had good luck with the Interstate Batteries. Every fall I pop the caps and check fluid level, top with distilled water as needed and terminals are cleaned and lubed with dielectric grease.
DENNY
 

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I was done with the BS of battery maintenance with this 6.7L. Went to Bosch AGMs w/4 year warranty. No issues to date.
 

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The old batteries were almost a volt apart and were the factory batteries that came with the truck. One thing of note 3 of the 4 terminals had those gasket/pads on them and the most corroded terminal was the one that did not have it.
That seems strange, I don't recall ever seeing those felt washers used on a factory battery. I have been selling Interstate batteries since around 1990 and never use those washers because I feel a quality battery doesn't need them because they're sealed better around the post. Back when we sold a "cheaper" battery every battery installed got them.
 

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My vote is in favor of using the felt pads. In my opinion, they help.
 

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I used to like the Costco’s batteries, I’d get 5 plus years outta them. When they switched to interstates, I was less than excited. I have to replace the interstate megaton in our burb every three years just after the wareenty replacement expires. Only reason I kept putting interstate back in it was the prorate made the new battery cheap. The prorate changed on the warranty so I’m no longer going to get interstates. Costco has great customer satisfaction and I’m sure they will back that interstate warranty. I’ve been stranded to many times in our burb because the interstate wasn’t bad enough for a wareenty replacement before the 36 mouths. It always seemed that interstate would then replace it at 38 months or so. Costco can’t help me when the car won’t start somewhere.

So this last year when our PSD needed batteries I went with Diehard AGM gold. Our Suburbans battery is now dead again, outta wareenty and will not take a charge. I’ll install the Diehard AGM in it too.
 

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I have to replace the interstate megaton in our burb every three years just after the wareenty replacement expires.
Some would call that a very well engineered battery...Lol

Where do you find Diehard AGM ?
 

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I gave up on Sears DieHard batteries a long time ago. And with as fast as the Sears stores are closing I wouldn't trust them for more than a year. Anymore I'll pick some up at a local automotive store and run them until they need replacement. The plus side to that is that I don't have to find a Sears store to change them out at. There are plenty of NAPA's, AutoZones and other chain stores out there that stock the ones that I am running.

The AutoZone Durlast Golds that I have in my truck now are going on 6 years now without a hic-cup.
 

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I have had good luck with Motorcraft batteries. And when I say luck, that's just what I believe. Know that Duralast, Interstate, Optima, Walmart brands Ever Start and Max Start, Diehard, are all made by Johnson Controls. They account for 65% of the North American market. The Motorcraft battery that came in my wife's car was 6 years old when I replaced it. She was driving 25 miles each way to work each day back then and I knew if I didn't replace it I would be getting a phone call one day. I put new Motorcrafts in my 97 F350 in 2012 and they are still going strong. My current F350 got new ones in 2017 and I expect I'll get at least 6 years out of them too. I will be surprised if I don't. YMMV
 

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I have a volt meter plugged into my 2000 dually truck all the time. Every morning the Sams Club Duralast Batteries would show 12.2 volts before I turned the key. About 14 volts driving. Same batteries in my Recreational Vehicle would show the same 12.2 volts. Every similar battery at Sams showed 12.2 volts and I tested about 10 new batteries. I have read a full charged battery should be 12.7 volts. The Sams batteries were about $100 and seem to always corrode the terminal ends.

My 2015 F350 has Motorcraft batteries and they read 12.7 every morning. In addition the Motorcraft battery has 850 CCA and I believe the Sam's club batteries are 750CCA. The Motorcraft Battery is $160 at Oreillys Auto near my home and has a 3 yr free replacement and 100 months prorated.

When I evaluate the length of time the batteries are in my truck, I feel the Motorcraft is better performing and will last longer. I may be wrong, but I plan to pay the extra money and go with the highly rated Motorcraft in my trucks and Recreation Vehicle.
 

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I have a volt meter plugged into my 2000 dually truck all the time. Every morning the Sams Club Duralast Batteries would show 12.2 volts before I turned the key. About 14 volts driving. Same batteries in my Recreational Vehicle would show the same 12.2 volts. Every similar battery at Sams showed 12.2 volts and I tested about 10 new batteries. I have read a full charged battery should be 12.7 volts. The Sams batteries were about $100 and seem to always corrode the terminal ends.

My 2015 F350 has Motorcraft batteries and they read 12.7 every morning. In addition the Motorcraft battery has 850 CCA and I believe the Sam's club batteries are 750CCA. The Motorcraft Battery is $160 at Oreillys Auto near my home and has a 3 yr free replacement and 100 months prorated.

When I evaluate the length of time the batteries are in my truck, I feel the Motorcraft is better performing and will last longer. I may be wrong, but I plan to pay the extra money and go with the highly rated Motorcraft in my trucks and Recreation Vehicle.
Yes, I think that you are making the right decision. I agree with you that only 12.2 volts is too low.
 

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Batteries dead in 4 Days

I went out to my truck last week and it was stone dead after sitting for a week. Charged them up and they seemed to take a charge. 4 days later they are stone dead again. These are the original batteries and three years old. Seem like last my last new truck, the batteries only lasted 3 years. 14.9 volts when running, 12.8 after charging. I hope it's the batteries and not something else! What color is the charge indicator supposed to be on the battery. Mine stay orange even after charging.
 

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3 Years is an average life for truck batteries.
Fully charged batteries are typically ~13.6v immediately after charging and should be no less than 12.6v after 24 hours.

I don’t know what your color indicator is but typically its Green for Good, Yellow for Marginal, Red for Bad.
 

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It might be a good idea to check for parasitic drain. My batteries just failed a few months ago and were 6 years old. Actually just one of them failed and it would pull the good one down but I always change them in pairs. I short trip the crap out of mine so I know I should be hard on batteries and didn't expect these to last as long as they did.
 

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Batteries today suck. I get max of 3 years out of any battery I own. I've had them load test "good" and had alternators diagnosed by the auto parts stores. I just replace the battery as my first repair when it is electrical. Every time it ends up being the batteries. I haven't had a bad alternator in 20+ years or other sensor. Keep it simple first. Do the batteries....

Tom
 

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I think it's time to replace mine too. I believe the ones in my 350 were original in 2013, so 5 years isn't too bad.
Showing 12.2 volts after sitting overnight and since I live in the NE I think it'll be better to change now rather that wait for a cold snowy day this winter.
Truck came with the snow plow prep which means I have 2 batteries to change.
Now the decision is which ones to buy.
 
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