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Dry cell battery
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78porsche924  



Joined: 14 Dec 2002
Posts: 1217
Location: Newark, DE(near where DE,MD and PA meets)

PostPosted: Thu Mar 24, 2005 8:03 am    Post subject: Dry cell battery Reply with quote

I have a 944s2 cabrio but decided to ask on these boards because i have only gotten great advice when i still had my 924 (may she rest in peace). i am looking for a dry cell battery and i assume that the battery tray is the same size as the 924. does anyone know of one that will fit without relocating the battery? in the winter my car sits and gets driven maybe every other week when i come home from school. because of this, the battery has died. ive heard dry cells work a lot better in the cold so that is why i want one. at the local stores, the only wet cells that they carry (that fit) arent exactly the greatest and the optimas are too tall and i cant close the hood. if anyone knows of one that will fit in the stock position please let me know.

thanks in advance
bobby
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Khal  



Joined: 26 Sep 2003
Posts: 4864
Location: Sunny and lovely interior BC, Canada

PostPosted: Thu Mar 24, 2005 9:25 am    Post subject: Reply with quote

I've had Odyssey batteries recommended to me on a couple of occasions. Could be worth a look..?

I've never used one but I've seen them demonstrated and they seemed pretty impressive. Smaller, lighter, more powerful than a standard battery.

Of course, more expensive, too...
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tj924  



Joined: 15 Jul 2004
Posts: 957
Location: Toowoomba, Queensland, Australia

PostPosted: Thu Mar 24, 2005 9:33 am    Post subject: Reply with quote

So what's the consensus on dry-cell batteries (I'm assuming these are the "maintenance free" batteries that are commonly shipping in new cars these days)?

My Dad doesn't like them but I think he just likes being a fiddly old fart .
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Silver '82 924 NA 5-Speed Manual
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Smoothie  



Joined: 01 Jan 2003
Posts: 8030
Location: DE (the one near MD, PA, NJ)

PostPosted: Thu Mar 24, 2005 9:34 am    Post subject: Reply with quote

I have an Exide spiral cell dry cell at home that'll fit if/when I need to put it into the 924. I'll get more info on it later.
That and the Optima dry cells are mountable sideways, so you might consider doing that.

Dry cell batts are maintenance free, but not all maintenance free batts are dry cell.
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Smoothie  



Joined: 01 Jan 2003
Posts: 8030
Location: DE (the one near MD, PA, NJ)

PostPosted: Thu Mar 24, 2005 11:13 am    Post subject: Reply with quote

"Exide Select Orbital Deep Cycle & Starting"
part no.: 34DC-48
I found it on sale at Pep Boys a couple years ago for just under $100.
JCW has it priced at $170 - http://www.jcwhitney.com/autoparts/ItemBrowse/c-10101/s-10101/p-100000205660/mediaCode-ZX/appId-100000205660/Pr-p_CATENTRY_ID:100000205660

http://www.exide.com/products/marine_rv/orbital_deep_cycle.html
That's actually a marine/rv battery as you might have noticed.
This is the automotive starting batt equivalent - http://www.exide.com/products/automotive/exide_select_orbital.html
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Raceboy  



Joined: 01 Mar 2004
Posts: 2318
Location: Estonia, Europe

PostPosted: Thu Mar 24, 2005 4:40 pm    Post subject: Reply with quote

I've had Optima in my racecar (it's a must here) and after that I purchased dry one to my other cars too. Very good thing, but a bit pricey, and when it will go, then it's not gonna fade away, but one day it just won't work.
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numbbers  



Joined: 05 Nov 2002
Posts: 1910
Location: Highlands Ranch, Colorado

PostPosted: Fri Mar 25, 2005 10:53 am    Post subject: Reply with quote

How does the weight of a dry cell compare to a wet cell?
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Paul  



Joined: 02 Nov 2002
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Location: Southeast Wisconsin

PostPosted: Fri Mar 25, 2005 11:16 am    Post subject: Reply with quote

According to this 40 vs 13.5 lbs:

http://www.performancedistributors.com/batteries.htm
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Paul  



Joined: 02 Nov 2002
Posts: 9414
Location: Southeast Wisconsin

PostPosted: Fri Mar 25, 2005 11:26 am    Post subject: Reply with quote

This one is about the same as a wet cell:

http://www.x10.com/electronics/allcategories/electronics/caraudiovideo/accessories/mobile_audio,_video_and_accessories_efx_EDC1200.html?3d4469ac35d85e6f42436849
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Paul  



Joined: 02 Nov 2002
Posts: 9414
Location: Southeast Wisconsin

PostPosted: Fri Mar 25, 2005 12:00 pm    Post subject: Reply with quote

Do you think this one is big enough for our cars? I think the battery I have now has about 550 cold cranking amps.

http://www.odysseybatteries.com/battery/pc680mjt.htm



680 cranking amps
Short circuit current over 1800A
25 minute reserve capacity with 25amp load
With metal jacket and automotive terminals
Length 7 1/16"
Width 2 15/16"
Height 7 3/16"
Weight 15.4 lb


Odyssey design:

2 year full warranty
Rugged Drycell sealed design
Military grade
Vibration resistant
60% more starting power
Deep discharge reserve power
2 year storage life
8-12 year design life
Can be mounted flat or upright
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numbbers  



Joined: 05 Nov 2002
Posts: 1910
Location: Highlands Ranch, Colorado

PostPosted: Sat Mar 26, 2005 11:48 am    Post subject: Reply with quote

Well, it looks like the weight advantage depends on the brand. But, I am not spending $200 plus for a battery.
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Smoothie  



Joined: 01 Jan 2003
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Location: DE (the one near MD, PA, NJ)

PostPosted: Sun Mar 27, 2005 12:22 am    Post subject: Reply with quote

After all the advantages are considered against the disadvantage, it doesn't look so bad. Consider the longer life of a drycell - that lessens the real price difference quite a bit. Then there's those that have had to repair a battery tray because a regular battery dripped acid - they'd appreciate the drycells' elimination of that mess happening again. Anyone that hasn't had it happen yet, but can imagine...they might like the lack of liquid acid feature too. They also allegedly perform better in climate extremes.
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Sleykin  



Joined: 30 Apr 2003
Posts: 758
Location: Medford, Oregon USA

PostPosted: Mon Mar 28, 2005 1:11 am    Post subject: Reply with quote

If you park your car close enough to power, you might want to consider a float charger. Get one with the maintenace charge feature and it will dramatically extend the life of an intermittent use battery. I have a solar powered one for my truck. I only drive it about once a month and it holds charge fine. The big 460 does not tolerate a weak battery Plugs into the cigar lighter so would only work if you wired the lighte to be hot all the time. Or you could wire an auxilary jack in.
I had an optima in the Bronco and it was a great battery that didn't need to be tickled to keep it alive. The Optima is an Absorbed Glass Matt style battery and I am not sure what the Odyssey design is. If it is also an AGM it should be great. If it is the Gell Cell design I would shy away. Gell Cells have a tendency to die by shorting internally and taking out the chargine system when they go.
YMMV
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Smoothie  



Joined: 01 Jan 2003
Posts: 8030
Location: DE (the one near MD, PA, NJ)

PostPosted: Sun Nov 13, 2005 9:20 am    Post subject: Reply with quote

Finally put the Exide Orbital to work. It had to be installed sideways - http://www.flickr.com/photos/9754161@N02/738845813/in/set-72157600685471748/
The starter kicks in and spins the engine so hard now, that it sounds like it's going to hurt itself.
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Last edited by Smoothie on Sun Mar 29, 2009 12:08 am; edited 1 time in total
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CBass  



Joined: 03 Nov 2002
Posts: 2807
Location: Vancouver, Canada

PostPosted: Sun Nov 13, 2005 9:36 am    Post subject: Reply with quote

Very nice.

Smoothie, is that a positive bolt I see underneath the lug connector for a flat ring terminal connector? That would be very handy for the custom wiring job I have in mind.
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