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Location: west michigan
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How Time Flies!
A couple weeks ago, the first time out for this spring for the 78SC...the battery was dead. Charged it up and it worked fine for a few days and then the cold weather returned.
The battery is an AutoCraft and I couldn't see the age sticker because of the cables. Today, the battery is dead again, so I decided to pull it and replace it. I was totally surprised to find a 11-07 sticker under the positive cables...I never thought it was that old. Went to Advance Auto and bought a 650 cca AutoCraft for $189 If it lasts 16 years again...someone else will be replacing it. 
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI Last edited by stevej37; 05-21-2023 at 12:44 PM.. |
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05-21-2023, 12:41 PM
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The salesman at Advanced Auto said that AutoCraft and DieHard are the same now.
Not sure if true...
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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05-21-2023, 01:48 PM
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Join Date: Apr 2002
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Quote:
 . I used to only buy DieHards for decades ... a long time ago.You musta been having some kind of fun these past 16 years tho' 
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05-21-2023, 01:55 PM
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Almost Banned Once
Join Date: Feb 2009
Location: Adelaide South Australia
Posts: 38,308
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16 years is not too shabby!
I'm in the process of building a 12v battery based on 18650 cells. I have most of the parts but I need a good/solid/strong/gas proof container. Thinking maybe the base of a regular battery with a custom top?
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- Peter |
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05-21-2023, 02:16 PM
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Long live DieHard...(or AutoCraft)
Here's a pic of the one I just replaced. The green date sticker might be hard to read. 
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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05-21-2023, 02:17 PM
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The last agm battery (red top Optima) lasted three years in my 84 Carrera.
I'll never..ever buy one of those again.
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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05-21-2023, 02:31 PM
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Almost Banned Once
Join Date: Feb 2009
Location: Adelaide South Australia
Posts: 38,308
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Quote:
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- Peter |
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05-21-2023, 02:39 PM
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Fleabit peanut monkey
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Quote:
The Optimas, I suspect, have to be managed and tended to like they are little woke-ass bee-otches.
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1981 911SC Targa |
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05-21-2023, 02:40 PM
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^^^ Prob not....but if it lasts half the time (8 years)...I'm a happy camper.
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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05-21-2023, 02:44 PM
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Fleabit peanut monkey
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Quote:
You saw my recent BMW battery post replacement from same era? Freak instances.
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1981 911SC Targa |
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05-21-2023, 02:53 PM
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Quote:
When I bought my 84 it came with a one-year old red top. Thirteen years later, I figured it couldn't last much longer...so I replaced it with the same. Same conditions...the new one died before 3 years. They are not the same batteries as before.
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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05-21-2023, 02:54 PM
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Quote:
Not sure...which thread? I've been off-line for a week.
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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05-21-2023, 02:57 PM
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Almost Banned Once
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Location: Adelaide South Australia
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FWIW My "Yellow Top" was Made in Mexico. They're really expensive "Down Under"
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- Peter |
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05-21-2023, 02:58 PM
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Fleabit peanut monkey
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Quote:
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1981 911SC Targa |
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05-21-2023, 03:05 PM
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^^^ Ahh yes...I see and remember my posts on the thread now.
That battery was in my 84 Carrera.
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI Last edited by stevej37; 05-21-2023 at 03:22 PM.. |
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05-21-2023, 03:15 PM
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$22 core charge for the old battery....happily to be given.
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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05-21-2023, 03:58 PM
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Get off my lawn!
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"Back in the old days" batteries had much thicker plates, and they were tougher, but less cold cranking power. Batteries would just get weaker and weaker, as you would notice the starter spinning slower.
Modern batteries have a much thinner plate, but more of them. Now typically batteries are fine one moment, and just dead a minute later, and you can't even jump start the car as the batteries have shorted internally. Batteries have a magic sense to know when the most inconvenient place and time possible for the owner for the battery to fail. I have just started replacing my batteries after the pro-rated warranty has expired by a year. I may waste a few more months of use, but saved myself the annoyance of a dead battery miles from home, on a Sunday night in the rain while in nice clothes.
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Glen 49 Year member of the Porsche Club of America 1985 911 Carrera; 2017 Macan 1986 El Camino with Fuel Injected 350 Crate Engine My Motto: I will never be too old to have a happy childhood! |
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05-22-2023, 04:43 AM
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^^^ I try to do the same as far as being pro-active....but three of my cars are only used half of the year. Throw in different age battteries and it's always.."Hey it started up fine this spring...it's good for the summer season."
Before you know it...you've had the battery for 16 years.
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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05-22-2023, 12:17 PM
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Get off my lawn!
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 The thread title made me thing of this.
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Glen 49 Year member of the Porsche Club of America 1985 911 Carrera; 2017 Macan 1986 El Camino with Fuel Injected 350 Crate Engine My Motto: I will never be too old to have a happy childhood! |
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05-22-2023, 12:27 PM
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1981 Porsche 911 SC Targa
Carrera
