09-04-2019, 10:09 AM
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#1
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Location: Denver, CO
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Battery Question
My 04 Sport (V8) was hit and totaled by insurance and I just replaced it with a 14 TEP. Before I hand the vehicle to the insurance company I'm pulling everything off the 04 that I don't want to give them. One of the things I'm not sure about swapping out is the battery. The 14 came with a Duralast Gold (24F-DLG), which looks new(ish), but I can't tell as the entire engine bay has been cleaned and looks almost factory new and the battery appears pretty new. I replaced the battery in my 04 a little more than a year ago with an Interstate Mega-Tron Plus (MTP-24F). Since I have an opportunity now to switch them out I'm wondering if there's a way to compare two batteries with regard to the remaining life expectancy? By spec the Interstate's a little better, but age and condition need to be factored in the decision since both are used. Is there a way to determine the anticipated remaining life of a battery? A First world problem for sure, but these are the things that keep me up at night.
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09-04-2019, 10:15 AM
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#2
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There are methods but most not worth pursuing. Just swap it over and call it a day. All else being equal the newer battery should last longer.
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09-04-2019, 10:19 AM
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#3
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Do it
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09-04-2019, 10:33 AM
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#4
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An easy (but not necessarily quick) way to see if there's any difference is to install one that has been fully charged by a battery minder or similiar, and then let it sit over night, or two days if possible, then take a voltage reading with a quality multi-meter. Pick whichever one has least voltage drop over similar time span. Note that variations in temperature while conducting the experiment may skew the results slightly, so write down temps that the experiment was conducted in so you can adjust accordingly.
If this is your daily driver, you can do this experiment in another vehicle. Most modern stock vehicles have between 20-50mA load on a battery at all times when the vehicle is off.
Also, you could just hook a load (12V light perhaps?) to the battery without it being in the vehicle and do this experiment much quicker.
Last edited by ChrisJHarney; 09-04-2019 at 10:35 AM.
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09-04-2019, 11:10 AM
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#5
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sorry, I don't mean an insult, but this is a no brainer.
you have a KNOWN battery, and an unkown. and, the known one is an Interstate.
run it, and don't look back.
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09-04-2019, 01:53 PM
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#6
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Thanks for the suggests and opinions! No insult taken nevada, I kind of was leaning toward this for the reasons you gave. But nagging at the back of my mind was the fact that if the Duralast is new.......
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09-04-2019, 02:03 PM
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#7
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Go with the one you have a warranty for. P.s. my last duralast gold only lasted 1.5 years. Went to costco to get an interstate and the battery shells have the same exact markings on them. Most likely all batteries are made by the same people.
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09-04-2019, 02:17 PM
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#8
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Unless you are doing something out of the ordinary with your battery, going by the date on the battery is generally good enough. Depending on the grade, 3-5 years and you start to approach the end of its service life.
Alternately, you can take it to a service center and have them load test the battery.
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09-04-2019, 02:54 PM
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#9
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If they are totaling it are they driving it away?
Can you just keep both?
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09-04-2019, 03:09 PM
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#10
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Quote:
Originally Posted by Photogr
Thanks for the suggests and opinions! No insult taken nevada, I kind of was leaning toward this for the reasons you gave. But nagging at the back of my mind was the fact that if the Duralast is new.......
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a used interstate is better than a new duralast...
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1985 4runner sr5 : 22RE/5spd-6" pro-comp suspension-37 BFG at's-5.29 gears-Badlands Basher bumper-8.5k RR winch.
2006 4runner v8 limited : stock. Build Thread YouTube Channel
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09-04-2019, 04:03 PM
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#11
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Quote:
Originally Posted by nevada
a used interstate is better than a new duralast...
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This is the type of info I was looking for.....thanks!
Quote:
Originally Posted by JP421
If they are totaling it are they driving it away?
Can you just keep both?
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Yes, and no. If I start parting out the car, they will not pay me what they quoted me.
Quote:
Originally Posted by CharlesNellis
Go with the one you have a warranty for. P.s. my last duralast gold only lasted 1.5 years. Went to costco to get an interstate and the battery shells have the same exact markings on them. Most likely all batteries are made by the same people.
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I wondered about this, but they are not created equal. A number of years ago I got caught up in the Sears Diehard scam, where they were selling recycled batteries as new. Every battery I bought would last 1/2 the time they warranty'd it for and they would give a prorated discount toward your new one. It made it much cheaper to replace in kind and thus keeping you in their loop. I finally bit the bullet and went Interstate and never looked back.
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09-04-2019, 05:32 PM
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#12
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I work around cars for a living and am pretty familiar with replacing batteries in a lot of different vehicles. We use Duralast (among other brands) and have had good luck with them. I don't deal with Interstate often but most of the Interstates I have run across are usually junk and need to be replaced. It could also be that those batteries have been in the cars for a long time and just finally died out though.
Sorry, that doesn't help much lol
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09-04-2019, 05:41 PM
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#13
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Some of the information in this thread is a little funny...
Age of the battery matters... I sure as hell would not take a used Interstate over a new Duralast.
Duralast is just an AutoZone private label. More often than not, its made by Johnson Controls, who is the same company that OEMs for many, including Walmart EverStart Maxx (yellow) and that is a fantastic battery.
AutoZone has also been known to buy from East Penn and Exide for their Duralast line.
Johnson Controls makes a 3 year and 5 year warranty version of that battery. The 5 year warranty is about as good as it gets for a regular car battery.
Costco who sells interstate went to the cheaper 3 year warranty battery and is no longer as good as the older 5 year variant which they used to have.
The grade of the battery matters, and is directly tied to it's expected service life and overall quality. How you treat the battery also has a massive impact in how long it lasts. If you are constantly running it flat, then don't expect it to last.
In the world of batteries... you get what you pay for. No secret sauce here.
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09-05-2019, 12:12 AM
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#14
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Just tell them the wrecked battery started to leak and you had to properly dispose of it before the environmental goons came after you.
They won't miss it unless they specifically checked it out before the offer was made.
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09-05-2019, 07:28 AM
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#15
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Which end your truck got hit and how hard? A jarring impact can break plates or otherwise damage the interior of a battery, so don't be surprised if you take it and it fails the next time you hit a big pothole.
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