03-26-2011, 11:16 AM
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#1
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,650
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Quote:
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Originally Posted by Gilles
Question: Would be advisable to drain the acid from the battery and fill it up with fresh acid..? Or just to fill up with distilled water
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Do not dump the acid and refill it, that will hasten the death of the unit. Top it off with distilled water...... You may want to also consider having it load tested; that will give you a go/no go rating of its condition.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
Last edited by JFP in PA; 03-26-2011 at 11:19 AM.
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03-26-2011, 02:47 PM
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#2
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,996
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Quote:
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Originally Posted by JFP in PA
Do not dump the acid and refill it, that will hasten the death of the unit. Top it off with distilled water...... You may want to also consider having it load tested; that will give you a go/no go rating of its condition.
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Thanks JFP,
The equalizing cycle just ended (about 4 1/2 hours), and now the charger shows 'full' and the battery never got hot, but I saw the liquid bubbling very slowly.
The instructions called to remove the plugs which I did however, to keep the dirt out these were covered with a folded 'blue paper towel' and the towel ended impregnated with circled shaped holes with minuscule dark particles on it from the cells.
I will let it cool down before starting the engine, a small report will follow afterwards.
Gilles
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03-30-2011, 12:18 PM
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#3
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,996
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Equalization process results
Quote:
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Originally Posted by JFP in PA
Do not dump the acid and refill it, that will hasten the death of the unit. Top it off with distilled water...... You may want to also consider having it load tested; that will give you a go/no go rating of its condition.
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Ok JFP, after three complete early morning cold starts (+/- 40 deg) I am happy to report how much better the battery feels while cranking the cold engine.
The equalization process did work out we'll see if this lasts until summer time, after all it's a four year old battery...
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03-30-2011, 02:46 PM
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#4
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,650
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Good. 4-5 years is about an average life for many of these, so don't be surprised if it starts to fade again.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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03-30-2011, 06:38 PM
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#5
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Porsche "Purist"
Join Date: Aug 2003
Location: Wisconsin
Posts: 2,123
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All this bother for a $50 to $60 battery from Wal-Mart?
__________________
1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
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03-30-2011, 10:51 PM
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#6
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Registered User
Join Date: Jan 2007
Location: BC
Posts: 1,353
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Quote:
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Originally Posted by Paul
All this bother for a $50 to $60 battery from Wal-Mart?
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Over $100 north of the 49th! 
__________________
2001 Boxster, 5 spd, Seal Grey
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03-31-2011, 08:22 AM
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#7
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Registered User
Join Date: Jan 2009
Location: Buffalo Grove, IL
Posts: 21
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noob question......isn't the OEM battery on my '07 sealed? How do I check the electrolyte level and top off with distilled water if necessary? Thanks!
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03-31-2011, 08:28 AM
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#8
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Registered User
Join Date: Jul 2009
Location: Arlington Heights, IL
Posts: 1,561
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Quote:
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Originally Posted by Kerry
noob question......isn't the OEM battery on my '07 sealed? How do I check the electrolyte level and top off with distilled water if necessary? Thanks!
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Not sealed. Just low maintenance. You have to "cut or break" through the black label on top, to access the 6-8 plastic screw caps. I forget how many cells there are. You can see the level on the sides, or look down the open hole. You'd be surprised how much distilled water these can take to top off when low!
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