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Joined: Feb 2009
Posts: 11,920
Campfire Outfitter
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Campfire Outfitter
Joined: Feb 2009
Posts: 11,920 |
And most batteries start failing in the summer and are found when it gets cold.
If it was my daughter's car a new one would go in no question.
I know how he feels about his daughter being away.
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Joined: Jun 2004
Posts: 11,116 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2004
Posts: 11,116 Likes: 1 |
On a micro level, the surface of battery plates is porous. This gives the plate much more surface area than a truly flat surface. As the battery is discharged and charged, new lead is plated onto the surface. This tends to reduce the porosity and the effective surface area. So you get less cranking capacity.
Deep cycle batteries are made with more plate mass. Cranking batteries are made with more plate surface area.
Be not weary in well doing.
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Joined: Aug 2005
Posts: 15,681 Likes: 3
Campfire Ranger
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Campfire Ranger
Joined: Aug 2005
Posts: 15,681 Likes: 3 |
My daughter was moving Monday and yesterday. Monday she parked and left her flashers on for about 1 hour, the car would not restart. On a jump it started, then restarted after that with a still warm engine.
It sat out for 24 hours and would not restart even on a jump. It had sat out in -10 or so temperatures.
I had the core tested at Autozone. They said it came out as 12.9 volts and half the rated amps. That battery was made in 2010.
What causes that?
Is this what you would expect?
2005 Jetta 2 liter Being manufactured by Interstate.
![[Linked Image from i.pinimg.com]](https://i.pinimg.com/originals/98/b6/d8/98b6d863a5f722b551cd8e1440bd2bd4.jpg) Z
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Joined: Dec 2003
Posts: 86,261 Likes: 25
Campfire Oracle
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Campfire Oracle
Joined: Dec 2003
Posts: 86,261 Likes: 25 |
The peace of mind is worth so much more than $155. My daughter and I did the same thing before she went back to college last fall.
Also, when a Pb-acid battery gets discharged (nearly) completely, a cell or two can get a reverse charge which increases internal resistance and greatly limits the reserve CCA. You might get a starter to bump a few times and then the battery dies
If you take the time it takes, it takes less time.
--Pat Parelli
American by birth; Alaskan by choice.
--ironbender
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Joined: Jul 2005
Posts: 10,925
Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2005
Posts: 10,925 |
Odyssey
I have 3, one in my Polaris Ranger I installed in 2006....you read that right.
2 more in my boat for trolling motor. Pricey, yes. But you won't worry about that battery for 7-12 years.
All American
All the time
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