07-20-2018, 09:58 PM
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#21
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2003 S, Arctic Silver, M6
Join Date: Oct 2014
Location: Winnipeg, MB, Canada
Posts: 1,346
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Quote:
Originally Posted by mgfranz
Now I disconnect it when I know it will be sitting for a while...
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Why not use a battery maintainer and keep it fresh?
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07-23-2018, 09:39 AM
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#22
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Registered User
Join Date: Nov 2006
Location: In the garage...
Posts: 1,716
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Quote:
Originally Posted by paulofto
Why not use a battery maintainer and keep it fresh?
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Correct, a much better solution particularly w/ such easy access via always on cigarette lighter ports in the 9x6 and 9x7 platforms.
FWIW, newer Porsches automatically provide a lovely CEL / 'Visit Workshop' message whenever the battery is disconnected. Also FWIW, power ports go inactive after ~ 10 days or so on the newer cars UNLESS vehicle is locked. Yes, a bit counterintuitive to not wanting to be locked out theory if battery goes flat. But obviously countless German engineers studied this endlessly and found their solution much preferred
Would be awesome if Porsche adopted a magnetic charge port a la Ferrari 488 or a Mac.
Good luck
__________________
"Cool Prius!" - Nobody
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07-23-2018, 12:51 PM
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#23
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Registered User
Join Date: May 2016
Location: Northern Indiana
Posts: 410
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Quote:
Originally Posted by Burg Boxster
....Also FWIW, power ports go inactive after ~ 10 days or so on the newer cars UNLESS vehicle is locked. Yes, a bit counterintuitive to not wanting to be locked out theory if battery goes flat. But obviously countless German engineers studied this endlessly and found their solution much preferred
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I can (well, sort of) understand the logic behind this. From an engineering perspective, if the vehicle has been setting for a period of time, deactivating the ports would prevent an ancillary item from draining the battery; additionally any action (ie opening door) would then "reset" timer restoring power to the port...I suppose the thought process went like "well, you can't get to the port without opening the door...so why keep it active?" Keeping the port active when the vehicle is locked takes a bit more of a stretch to explain though...perhaps the thought was "if the vehicle is locked, the item is less likely to be stolen, so it can remain active". I'm sure there was a flow chart and multiple PowerPoints at a design meeting expaining all of the reasons....
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10-15-2018, 06:28 AM
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#24
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Registered User
Join Date: May 2017
Posts: 3
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Replacement Battery Porsche v. Competition?
Dealer wants $500.00 to install new battery. Tells me if not the proper battery you'll get warning lights and check engine light coming on. Is this true?
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10-15-2018, 06:39 AM
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#25
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Registered User
Join Date: Oct 2014
Location: Peterborough Ontario Canada
Posts: 148
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Quote:
Originally Posted by Giff
Dealer wants $500.00 to install new battery. Tells me if not the proper battery you'll get warning lights and check engine light coming on. Is this true?
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Not True! 4 years so far with a Canadian Tire Eliminator- works like a charm.
__________________
1999 Boxster, Ocean Blue Metallic-grey top.
LN IMS dual row-, Ben's short shift kit
Last edited by pilut2; 10-15-2018 at 08:10 AM.
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10-15-2018, 09:34 AM
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#26
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Registered User
Join Date: Oct 2014
Location: California Central Coast
Posts: 1,476
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Quote:
Originally Posted by Giff
Dealer wants $500.00 to install new battery. Tells me if not the proper battery you'll get warning lights and check engine light coming on. Is this true?
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Possibly true. Depends on what year you have.
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10-17-2018, 06:33 AM
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#27
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Registered User
Join Date: Mar 2013
Location: pa
Posts: 18
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battery maintainer Fun Fact
I've been using a Porsche battery maintainer on my 2004 Boxster since I got it 5 years ago.
I plug the car in Whenever it's in the garage.
The car Always starts right up with no hesitation, even away from home.
It's a generic lead-acid battery (forgot the name) dated 2009!
Maybe I'll get a new one this Spring, just for the heck of it.
Maybe not.
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10-18-2018, 05:12 AM
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#28
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Registered User
Join Date: Sep 2012
Location: S. New Jersey
Posts: 1,239
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I replaced my battery a couple years ago.
These batteries will lull you into false security.
They work with no warning they are going bad, then out of no where, any time, even after a long drive , "Click Click Click Click...."
This is a common story I have heard from other forum members
Mine was a Walmart parking lot after a 2 hour drive and several years of faithful service.
Now maybe if I had been monitoring the voltage I would have seen it coming
__________________
2002 S - old school third pedal
Seal Grey
Last edited by kk2002s; 10-18-2018 at 05:15 AM.
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10-19-2018, 06:22 AM
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#29
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Registered User
Join Date: Mar 2013
Location: pa
Posts: 18
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kk2002-
You're right.
I was being somewhat facetious about not wanting to replace my battery.
I'm ASTOUNDED that it has lasted so long after it's '09 manufacture date!
Typically, I'll need to replace them after 4 years maximum.
This is the first car that I've used a battery maintainer on and
the results are clearly amazing.
What is your favorite/most reliable voltage check procedure?
Battery disconnected? Car running? etc.
A friend is the recycling engineer for Deka Battery, which manufactures lead acid batteries for many re-labelers. I'll donate the battery to him for research when I buy a new one this Spring!
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10-19-2018, 06:50 AM
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#30
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1998 Boxster Silver/Red
Join Date: Sep 2017
Location: 92262
Posts: 3,041
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Quote:
Originally Posted by kk2002s
I replaced my battery a couple years ago.
These batteries will lull you into false security.
They work with no warning they are going bad, then out of no where, any time, even after a long drive , "Click Click Click Click...."
This is a common story I have heard from other forum members
Mine was a Walmart parking lot after a 2 hour drive and several years of faithful service.
Now maybe if I had been monitoring the voltage I would have seen it coming
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eBay. <$8 Lots of choices.
__________________
1998 Porsche Boxster
Last edited by Starter986; 10-19-2018 at 06:54 AM.
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10-19-2018, 10:14 AM
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#31
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Registered User
Join Date: Jan 2014
Location: New Jersey
Posts: 1,631
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Quote:
Originally Posted by Starter986
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Nice, can you tell us how you wired it?
I've only replaced the battery in my 2003 S once, since buying it new and went with an Interstate. I always keep it on a CTEK maintainer when it's parked in my garage. Since my car's been sitting in the shop since July waiting for my engine to be rebuilt, I expect it may be time for a new battery when the engine is back together.
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