SAAC Forum

The Cars => 1968 Shelby GT350/500/500KR => Topic started by: rjcassling on April 20, 2019, 06:13:35 PM

Title: Battery replacement options
Post by: rjcassling on April 20, 2019, 06:13:35 PM
the Autolite battery for my KR is now 3 years old and showing signs of losing power.

What replacements would you suggest as I want to keep the concours look.

should I just replace the old Autolite with a new one? I have not heard great reviews of the Autolite overall and I think I have been lucky to have it last this long.

Is there a best high CCA battery that will accommodate the fake Autolite cover?

Title: Re: Battery replacement options
Post by: KR Convertible on April 22, 2019, 11:16:33 AM
Bob,

I just went through this on my 65 convertible.  I went with an Exide from Home Depot.  The biggest problem was finding a battery with recessed filler caps/vents.  The battery topper fits it well.  The other bonus is it has the correct "foot" to work with the 65/66 battery hold down.  There may be other options for the 68's.  I can't remember what I have in the 68.  I'll check it when I get a chance.

Paul

https://www.homedepot.com/p/Exide-24F-Auto-Battery-24FX/204852594
Title: Re: Battery replacement options
Post by: Doug C on April 22, 2019, 11:24:39 AM
Quote from: KR Convertible on April 22, 2019, 11:16:33 AM

Bob, this is the same battery from Home Depot that I have had in my 66 for almost 2 years.  So far it works great...

Bob,

I just went through this on my 65 convertible.  I went with an Exide from Home Depot.  The biggest problem was finding a battery with recessed filler caps/vents.  The battery topper fits it well.  The other bonus is it has the correct "foot" to work with the 65/66 battery hold down.  There may be other options for the 68's.  I can't remember what I have in the 68.  I'll check it when I get a chance.

Paul

https://www.homedepot.com/p/Exide-24F-Auto-Battery-24FX/204852594
Title: Re: Battery replacement options
Post by: shlby66 on April 22, 2019, 06:54:33 PM



   I have had the Exide battery in my '66, for about a year now. No problems, it fits and has
   the lock down ledge.   

   Bought it at Tractor Supply, while it was on sale. :)

   Doug.
Title: Re: Battery replacement options
Post by: PR on April 22, 2019, 10:25:43 PM
Go to ford, I've bought a few for my shelbys and Mach 1's at least they say motorcraft, just replacing original with what ford has now, 129.$
Title: Re: Battery replacement options
Post by: rjcassling on April 23, 2019, 08:02:35 PM
Quote from: KR Convertible on April 22, 2019, 11:16:33 AM
Bob,

I just went through this on my 65 convertible.  I went with an Exide from Home Depot.  The biggest problem was finding a battery with recessed filler caps/vents.  The battery topper fits it well.  The other bonus is it has the correct "foot" to work with the 65/66 battery hold down.  There may be other options for the 68's.  I can't remember what I have in the 68.  I'll check it when I get a chance.

Paul

https://www.homedepot.com/p/Exide-24F-Auto-Battery-24FX/204852594

Thanks Paul
Title: Re: Battery replacement options
Post by: Bigfoot on April 23, 2019, 08:22:49 PM
Bob
I just hit WalMart or equivalent and get an all black battery and pull off the decals.
Only you will know. You can always splurge if you take ur car to concours.
Title: Re: Battery replacement options
Post by: Cobrask8 on April 23, 2019, 08:33:01 PM
Definitely the biggest you can get for a big block. And make sure you have the "Grounding Triangle". Either you look stock and don't start, or you can start it and drive. Also, that crappy concours positive cable is for a six cylinder.

Best idea - use all the big HD stuff to drive it, and at a concours show, swap out to the wimpy correct stuff
Title: Re: Battery replacement options
Post by: Bob Gaines on April 27, 2019, 12:59:00 PM
Quote from: Cobrask8 on April 23, 2019, 08:33:01 PM
Definitely the biggest you can get for a big block. And make sure you have the "Grounding Triangle". Either you look stock and don't start, or you can start it and drive. Also, that crappy concours positive cable is for a six cylinder.

Best idea - use all the big HD stuff to drive it, and at a concours show, swap out to the wimpy correct stuff
The battery being discussed so far is the group 24 battery . The group 27 is the biggest that comes in a Shelby . I agree it is preferred for a BB. It requires a larger tray . It was typical in 69/70 BB . Although a larger tray can be bolted into a 67/68 the rework of the terminal block wiring on a 67/68 Shelby makes it somewhat impractical in those cars. Special made welding cable gauge (same gauge as rear battery) battery cables helps. A factory starter with high torque windings is better, A high torque gear reduced starter is best . The gear reduced starter will work with the factory cables. The gear reduced starter down side is that it looks different then stock and sounds odd when in use. IMO the down side is offset by the reliable starting under the worst conditions on a pleasure driven car . Since it is down low it isn't that noticeable too. ;D 
Title: Re: Battery replacement options
Post by: shelbymann1970 on April 28, 2019, 09:19:29 AM
Quote from: Cobrask8 on April 23, 2019, 08:33:01 PM
Definitely the biggest you can get for a big block. And make sure you have the "Grounding Triangle". Either you look stock and don't start, or you can start it and drive. Also, that crappy concours positive cable is for a six cylinder.

Best idea - use all the big HD stuff to drive it, and at a concours show, swap out to the wimpy correct stuff
Well the battery cables on my Mach1 are  the thickest I have ever had on a Mustang, Dan. :)
Title: Re: Battery replacement options
Post by: Sxty8KR on May 30, 2019, 12:29:59 PM
https://www.batterycentralmall.com/Batteries/TurboStart/Script/S27F.html

I don't recall if I purchased my NOS appearing battery through these guys for my KR, but its an option. The battery I purchased cost Near $400. I think a Google search would find other vendors as well.   :)

Steve
Title: Re: Battery replacement options
Post by: KR Convertible on May 30, 2019, 12:33:57 PM
I got an email from Va Mustang last week I think.  They have a limited supply for $350

http://www.virginiaclassicmustang.com/GROUP-24-AUTOLITE-BATTERY-MAINTENANCE-FREE-SEALED-STYLE-P1603.aspx
Title: Re: Battery replacement options
Post by: 67350#1242 on May 30, 2019, 01:53:29 PM
The Home Depot Exide Extreme is a great battery, but it looks like it is no longer available in stores near me nor available for delivery.  I have one in my 67 that has been in service for more than 7 years and just bought another last fall for another car but had to look at 3 different stores and got the last one on the shelf then.  You may get lucky and find one in stock but be sure to check the date - if it has been on the shelf with acid in it for 6-8 months I would hesitate to buy due to chance of sulfation.
Title: Re: Battery replacement options
Post by: Stillakid54 on May 31, 2019, 02:18:43 AM
If one wanted to replace a group 27 for a similar size for my 69, what would be suggested? Is there a false top for this size? Thanks in advance.
Title: Re: Battery replacement options
Post by: Bigfoot on May 31, 2019, 09:08:23 AM
^^
Gotta be...
Title: Re: Battery replacement options
Post by: Bob Gaines on June 01, 2019, 01:36:07 AM
Quote from: Stillakid54 on May 31, 2019, 02:18:43 AM
If one wanted to replace a group 27 for a similar size for my 69, what would be suggested? Is there a false top for this size? Thanks in advance.
No battery topper currently for 27 F size. Motorcraft group 27 F is the typical solution for the foreseeable future. You might check with Brant at Virginia Mustang because he might have some insight on repro availability . He recently posted about having a limited amount of the 24 F versions .Post back and give a update for others.
Title: Re: Battery replacement options
Post by: rjcassling on June 01, 2019, 10:39:46 PM
https://www.walmart.com/ip/EverStart-Maxx-Lead-Acid-Automotive-Battery-Group-124r/28275664?wmlspartner=wlpa&selectedSellerId=0&wl13=5152&adid=22222222227019019506&wl0=&wl1=g&wl2=c&wl3=80429035969&wl4=pla-60267993451&wl5=9031022&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=local&wl12=28275664&wl13=5152&veh=sem&gclid=Cj0KCQjwxMjnBRCtARIsAGwWnBMMuF4agXuF-6GUg5hr0Bft1j60P6rUBepUCrx90MIoy7CSOdPcVTMaAtZtEALw_wcB

Looking thru the Internet, it looks like the Exide battery from Home depot may be discontinued. It is not available in any store within 100 miles of me. Ford batteries don't look like they will accommodate the fake Autolite top.

this Walmart battery fits the size correctly but is only 700CCA, which seems too low.

Any other ideas?

Thanks
Title: Re: Battery replacement options
Post by: Bigblock on June 02, 2019, 12:07:08 AM
I have a Walmart MAXX START 'Group 34 800 CCA' in the KR. Fits right in the original battery tray. One of the solutions to the hot start issue.
Title: Re: Battery replacement options
Post by: rjcassling on June 02, 2019, 10:18:33 AM
Quote from: Bigblock on June 02, 2019, 12:07:08 AM
I have a Walmart MAXX START 'Group 34 800 CCA' in the KR. Fits right in the original battery tray. One of the solutions to the hot start issue.

Thanks

https://www.walmart.com/ip/EverStart-Maxx-Lead-Acid-Automotive-Battery-Group-Size-34N/16795242

this one looks pretty good. Will the Autolite topper fit on it?   Is 800CCA enough power to always start a hot engine?

Bob
Title: Re: Battery replacement options
Post by: 67350#1242 on June 02, 2019, 11:09:09 AM
The terminals look backwards on that one.
Title: Re: Battery replacement options
Post by: rjcassling on June 02, 2019, 11:14:00 AM
Quote from: 67350#1242 on June 02, 2019, 11:09:09 AM
The terminals look backwards on that one.

Good Observation

Back to the drawing board
Title: Re: Battery replacement options
Post by: Bigfoot on June 02, 2019, 11:21:02 AM
For the non concourse guy or if the topper isn't available the " de-stickered " flat black batteries will look perfect for most. Including me.
If you ever have a situation where fitment  is funny just get a heavy duty black zip tie around 36" and strap on (around) and clip for appearances,...blends right in.
Title: Re: Battery replacement options
Post by: Bigblock on June 03, 2019, 07:39:57 AM
Quote from: rjcassling on June 02, 2019, 11:14:00 AM
Quote from: 67350#1242 on June 02, 2019, 11:09:09 AM
The terminals look backwards on that one.

Good Observation

Back to the drawing board

Yes they are backwards but fit my 2 gauge cable (other part of the hot start solution) bends really well. This is for driving, as far as I'm going to take things.
Title: Re: Battery replacement options
Post by: Supersnakeingrass on June 03, 2019, 01:42:24 PM
I just went with a Costco black top battery.  After going through 2 Autolite batteries in 8 years,
I had enough.  Nothing wrong with my charging system.  Just bad batteries.

Looks decent.  I'm considering the Faux cover.

SSIG
Title: Re: Battery replacement options
Post by: Rickmustang on July 10, 2019, 11:19:59 PM
My 6 month old Autolite battery just failed. I would like to try another AGM battery that the Autolite topper fits. I hate putting an acid battery in the trunk. Anyone find an AGM that goes with the topper?