Proper Battery for 1988 Rolls Royce Silver Sput - Rolls-Royce and Bentley Forums
 
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post #1 of 8 (permalink) Old 08-21-2019, 10:20 PM Thread Starter
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Proper Battery for 1988 Rolls Royce Silver Sput

I am very much about keeping things proper things on my 88 Spur. I need a new battery and many car part stores list different battery sizes as being "applicable."

Can someone comment on the proper size from the factory?

Thanks so much.

Robert

1988 Rolls-Royce Silver Spur
Georgian Silver / Navy Blue Everflex
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post #2 of 8 (permalink) Old 08-22-2019, 05:16 AM
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12 V / 100 AH is in my opinion the best compromise, if you have the room for it.
Otherwise, I think the original recommandation for SZ cars was about 70/75 AH.
My advice would be to install the most powerfull you have the room for, between 70 AH and 100 AH.

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post #3 of 8 (permalink) Old 08-22-2019, 07:54 AM
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Look at CCA and warranty, replacement and prorated. One of the best would be Exide, NAPA, and Duralast from Autozone. Autozone gas 20% deals all the time. After comparing many, I went with a Group 27 for my SWII from Autozone, a Duralast Gold.

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post #4 of 8 (permalink) Old 08-22-2019, 09:41 AM
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Robert B,


You do need to make sure the dimensions are also compatible with your battery clamp arrangements as it is important that the battery is secure.


As Robert S says CCA is important as well as at least 75/100 aH as Jean7.


Battery technology has come a long way and quite possible you see many that are power related size that would suit your car but also dimensions are critical to save having to modify your carrier attachments.


It is quite possible you may not find a modern battery the correct dimensions as I could not for my Shadow so looked at best fit to retain into carrier as well.


Steve

Last edited by Steve E; 08-22-2019 at 09:44 AM.
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post #5 of 8 (permalink) Old 08-22-2019, 09:54 AM
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Group 27 is used. Remember to connect the positive terminal first then negative, same protocol when using jumper cables.

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post #6 of 8 (permalink) Old 08-24-2019, 11:09 AM Thread Starter
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The Group 27 was too big. The proper battery on my 88 Spur is a 34. The AC Delco gold has 750 CCA, 875 CA, and 70 AH. That was the best I could find.

BTW, the car comes with a 1" "platform" to mount to the bottom of the 34 to give it the proper height. The box that holds the battery is bigger than the battery. It is an odd trapezoid shape with one right angle. The strap down bracket that goes on top of the battery fits the 34 perfectly.

Robert

1988 Rolls-Royce Silver Spur
Georgian Silver / Navy Blue Everflex
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post #7 of 8 (permalink) Old 08-24-2019, 11:11 AM Thread Starter
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BTW, can a group administrator change the title of this thread from "Proper Battery for 1988 Rolls Royce Silver Sput" to "Proper Battery for 1988 Rolls Royce Silver Spur" and then delete this post?

Robert

1988 Rolls-Royce Silver Spur
Georgian Silver / Navy Blue Everflex
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post #8 of 8 (permalink) Old 08-24-2019, 01:29 PM
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Hi Robert B,


The battery 'POWER' should be fine and if the dimensions let you secure it correctly and stable then you should be fine.........



I like to keep my car as original as possible too, so understand what you were looking for, but as I said battery technology has advanced so much in the last 20 years and it is hard to get like for like today in dimensions.



Regards


Steve
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