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  #31  
Old 12-23-2016, 04:07 PM
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We used to buy Johnson control group 49 batteries made in the USA for 99.00. Decent quality. Then they moved production to Mexico.

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  #32  
Old 12-23-2016, 06:34 PM
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Originally Posted by ROLLGUY View Post
My local battery place has 2 year group 49 "seconds" for $49 out the door. I have been buying them for years, and they typically last about 3 years. I have probably purchased about a dozen since I have had the 'Benz hobby.


As I understand it seconds should go about the same in lifespan. Technically seconds cannot deliver the total amps labeled on test at the end of the production line.


Because of the pre charging today that has defined limits before sale. As I mentioned earlier this might also be a factor. Basically there is no reason to suspect them to not last as long in service. The short lifespan of a battery today is usually underuse or periods of no use plus perhaps deep discharging. I have experienced them all at one time or another. On so called first line batteries.
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  #33  
Old 12-23-2016, 06:48 PM
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However long they last, it is at least 2 years, and that is less than $25 per year for the "rental" on a group 49 battery. Between my brother (he has 3-123's) and I, I think we are their best group 49 customers.
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  #34  
Old 12-24-2016, 09:48 AM
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For those in the southwest? We in the north are told heat shortens the life of car batteries. True or not I have no ideal.


I also have been told that there is a difference in batteries manufactured for the two different climatic regions of north America. Again true or not again I have no ideal.


What I do remember is a place in Louisville Kentucky I purchased supplies from long ago. When there they had new interstate batteries for 15-20 dollars apiece. I think this was about thirty years ago.


They sold a line of auto paints I really liked cheap. In the north where I live the uv protection inherent in them seemed to really play out well up here.


Even reds where only around thirty dollars a gallon back then there. Some of our customers though it was the best paint they ever used.


Five years after application it still in many cases looked new. They sold many things for the auto refinishing industry that were not available in
Canada.
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  #35  
Old 12-24-2016, 09:57 AM
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Originally Posted by ROLLGUY View Post
However long they last, it is at least 2 years, and that is less than $25 per year for the "rental" on a group 49 battery. Between my brother (he has 3-123's) and I, I think we are their best group 49 customers.


I was not being critical of the three year lifespan at all. We live in a cool climate in eastern Canada. This alone might extend the life of our batteries as well. I expect as with most chemicals and their reactions. Temperatures over 70F degrees might shorten lifespans by increasing the chemical activity. Cold enough and the activity level is so low some people use battery warmers.


We obviously have a lot more cooler days than the bulk of north America.
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  #36  
Old 12-24-2016, 10:27 AM
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I was not being critical of the three year lifespan at all. We live in a cool climate in eastern Canada. This alone might extend the life of our batteries as well. I expect as with most chemicals and their reactions. Temperatures over 70F degrees might shorten lifespans by increasing the chemical activity. Cold enough and the activity level is so low some people use battery warmers.

We obviously have a lot more cooler days than the bulk of north America.
Barry,

I would have thought our cold winters would be harder on our batteries than warm days. Thick oil, cold engine, cold battery, longer gloplug preheat are all tough on batteries.

Mind you, I ran the 6 yr old Canadian Tire Eliminator on 300D dead flat last week (down to zero volts!). I was able to get it back to life and now have used it for about a week with no problems. On Schumaker load tester it stays about 25% in green after 10sec load test. Had a 9 year warranty and was hoping to be able to exchange it on pro-rata basis. But it now wouldn't fail test

Merry Christmas.

Graham
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  #37  
Old 12-24-2016, 11:10 AM
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Interstate 7 yr warranty. AGM Mega. $202.00....local tire shop.



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  #38  
Old 12-24-2016, 11:19 AM
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Interstate 7 yr warranty. AGM Mega. $202.00....local tire shop.



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Can you post a pic of it? I bought an H8 AGM "take off" from an Interstate warehouse for $40. Wondering if it's the same battery and how long it'll last. Been around 16 months, warranty expired already but so far so good.
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  #39  
Old 12-24-2016, 11:27 AM
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Can you post a pic of it? I bought an H8 AGM "take off" from an Interstate warehouse for $40. Wondering if it's the same battery and how long it'll last. Been around 16 months, warranty expired already but so far so good.
Car and Truck Automotive Batteries - Buy a Vehicle Battery for Cars or Trucks | Interstate Batteries - Mega-Tron Plus 49/H8 Automotive Battery Six-Year Performance 730 CCA



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  #40  
Old 12-24-2016, 11:43 AM
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Barry,

I would have thought our cold winters would be harder on our batteries than warm days. Thick oil, cold engine, cold battery, longer gloplug preheat are all tough on batteries.

Mind you, I ran the 6 yr old Canadian Tire Eliminator on 300D dead flat last week (down to zero volts!). I was able to get it back to life and now have used it for about a week with no problems. On Schumaker load tester it stays about 25% in green after 10sec load test. Had a 9 year warranty and was hoping to be able to exchange it on pro-rata basis. But it now wouldn't fail test

Merry Christmas.

Graham
I didn't think it's possible to run a battery down to 0 volts. I'd think you'd measure at least a volt or 2. It'd be interesting to see how much longer this battery will function. I ran a newish Autozone flooded battery dead (do not remember final voltage or if I even measured it) by leaving glow plugs on for a few hours and was able to recover it by charging and it worked OK for a few months. I recall and did not have enough capacity to start the engine at max rpm.

Speaking of car battery longevity, I have a Blue top Optima AGM that's at least 15 years old and it's still providing reliable starts in my 92 Jetta idi. I should get it load tested and see what condition it's really in.

I had an old battery with low voltage 12.4 V @ full charge laying around for a few years and was going to bring it to the local recycler which is a long drive from here. They pay by the pound. I called Autozone and asked if they take batteries like used oil. They said yes. On a wim, I asked if they pay anything for it. They said no but will give a $10 store credit per battery. That's good as cash! Dropped the battery off, got store credit and bought 2 bottles of Marvel Mystery Oil for a little over $10.
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  #41  
Old 12-24-2016, 12:10 PM
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Different battery. This pic was taken at the Interstate warehouse when I bought my second AGM H8 (on the right), supposedly a "take off" from Mercedes that was rejected for whatever reason but was tested to be good by Interstate afterwards. Interstate supplies batteries to Mercedes in the US from what I was told. On the left is a dead Mercedes battery from a 560 SL that sat un-driven for about 2 years and could not be brought back by charging. Interstate removes all labels from the Mercedes battery and slaps on the Econopower label before being sold.

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  #42  
Old 12-24-2016, 12:26 PM
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What I did find was, the Interstate Mega Tron for the S500 was 1 inch or so shorter in the battery bay so not locked down like it should be.


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  #43  
Old 12-24-2016, 12:51 PM
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What I did find was, the Interstate Mega Tron for the S500 was 1 inch or so shorter in the battery bay so not locked down like it should be.


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I always weigh my batteries as a comparison when possible. Heavier the better (more lead). That $40 AGM battery was the heaviest one so far. It'd be interesting if you weigh yours.
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  #44  
Old 12-24-2016, 01:59 PM
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I always weigh my batteries as a comparison when possible. Heavier the better (more lead). That $40 AGM battery was the heaviest one so far. It'd be interesting if you weigh yours.
50 lbs.





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  #45  
Old 12-24-2016, 03:26 PM
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50 lbs.





.
This is from memory. My AGM was 64 lbs and the flooded cell battery it replaced was 58 lbs. Maybe new construction techniques made lead acid batteries more efficient, requiring less lead for the same performance?

Don't understand why your battery is 1" shorter. I thought the H8 spec defines physical as well as electrical parameters.

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