AC Delco battery size for a 2001
03-14-2012, 02:05 PM
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AC Delco battery size for a 2001
Update:
It does fit.. The Delco professional 78-6YR 78 series battery does fit in my 2001 coupe. It is a tight fit with the surrounding items but fits perfectly in the tray and no problem with the hold down or the cables.
Hello everyone..
I have searched the forums up and down and got a lot of great information about which replacement battery to buy for my 2001 coupe.
All of the compatibility guides call for a group 75 battery but from reading what everyone recommends due to RC and CCA I would like to go with a group 78
Specifically the AC Delco 78-6yr professional.
I have found spec sheets showing the battery length to be either 10.2" or 10.9" I measured the tray and a 10.2" might fit but a 10.9" definitely wont.
If anyone can please verify if a AC Delco 78-6yr does / did fit into the 2001 battery tray I will really appreciate it.
Thanks again Jon
It does fit.. The Delco professional 78-6YR 78 series battery does fit in my 2001 coupe. It is a tight fit with the surrounding items but fits perfectly in the tray and no problem with the hold down or the cables.
Hello everyone..
I have searched the forums up and down and got a lot of great information about which replacement battery to buy for my 2001 coupe.
All of the compatibility guides call for a group 75 battery but from reading what everyone recommends due to RC and CCA I would like to go with a group 78
Specifically the AC Delco 78-6yr professional.
I have found spec sheets showing the battery length to be either 10.2" or 10.9" I measured the tray and a 10.2" might fit but a 10.9" definitely wont.
If anyone can please verify if a AC Delco 78-6yr does / did fit into the 2001 battery tray I will really appreciate it.
Thanks again Jon
Last edited by 82gold_2.1k quicksil; 03-19-2012 at 03:47 PM. Reason: Update
03-14-2012, 03:24 PM
#2
Race Director
75s are plenty for most C5 owners
700 CCA is not good enough? For this to be true, you'd need to have lots more power-robbing accessories than the car had when new. The 75-7YR is rated at 700 CCA.
03-14-2012, 03:30 PM
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Thanks for the quick reply..
I just remeasured the tray itself and it does measure only 10 1/8 " long.
What year is your car ? That is part of my confusion, I think they might have changed the tray size from one year to another somewhere around 2001- 2003
Thanks again. Jon
I just remeasured the tray itself and it does measure only 10 1/8 " long.
What year is your car ? That is part of my confusion, I think they might have changed the tray size from one year to another somewhere around 2001- 2003
Thanks again. Jon
03-14-2012, 03:49 PM
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Thanks for the reply..
According to information on this website and others a C5 should have a battery with a reserve capacity of 120, the maximum that the 75 series has is RC 95 that is why I am trying to find out for sure if the group 78 will fit.
The reason the RC120 is recommended has to do with the performance of the battery in vehicles that are not used often and the parasitic drain on the battery. Also it seems that the battery specs has a lot to do with column lock issues.
Thanks
According to information on this website and others a C5 should have a battery with a reserve capacity of 120, the maximum that the 75 series has is RC 95 that is why I am trying to find out for sure if the group 78 will fit.
The reason the RC120 is recommended has to do with the performance of the battery in vehicles that are not used often and the parasitic drain on the battery. Also it seems that the battery specs has a lot to do with column lock issues.
Thanks
03-14-2012, 07:35 PM
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Thanks for the clarification. Hopefully someone has the answer..
I have to correct the above info. My battery actually measures 10.2"... I was too lazy to go measure the battery so I looked up what I thought was my battery and selected the wrong one to get the specs for. 
When I went to install the physically larger than my OEM Delco battery several years back, I checked the parts info on GMPARTSHOUSE.COM to see if there was another battery tray for the C5. The parts listing showed only one tray for all year C5's. Since that time the data base that is used by GMPARTSHOUSE.COM doesn't show the battery tray (probably unavailable from GM any longer)so I cannot double check that info any longer. (at least from the parts info from that source)
My car is not an 01, it is an 04 but based on what I researched several years back the trays are the same and my 10.2" battery is definitely inside the factory tray and secured with the factory hold down wedge.
I'll correct the above post also for other readers of this thread... :o
When I went to install the physically larger than my OEM Delco battery several years back, I checked the parts info on GMPARTSHOUSE.COM to see if there was another battery tray for the C5. The parts listing showed only one tray for all year C5's. Since that time the data base that is used by GMPARTSHOUSE.COM doesn't show the battery tray (probably unavailable from GM any longer)so I cannot double check that info any longer. (at least from the parts info from that source)
My car is not an 01, it is an 04 but based on what I researched several years back the trays are the same and my 10.2" battery is definitely inside the factory tray and secured with the factory hold down wedge.
I'll correct the above post also for other readers of this thread... :o
03-14-2012, 07:50 PM
#6
Melting Slicks
If a 78 fits go for it larger plate area
My 98 takes a 78. GM switched to 75 to either save $ or weight. I'm guessing $. Have a Sams Eveready battery in mine and going strong for last 5 years. Need the CCA on a cold winter day which we haven't seen this year but larger capacity is good in summer too running AC, lights and wipers. Yes I DO drive in rain as the car isn't a museum piece in my garage.
03-14-2012, 08:48 PM
#7
Melting Slicks
I have a 2001 and it takes a group 75 battery. With the computer under it I would only use a Optima Red Top as it has no change of ever leaking. Size 75/25 which has 2 sets of connectors lets me add a round clamp so I can easily disconnect for storage.
I found that 877 207 5151 sells it at $154 shipped-best price.
I found that 877 207 5151 sells it at $154 shipped-best price.
03-14-2012, 09:52 PM
#8
Burning Brakes
I used the 78 in my '01. Fits perfectly and I used the AC Delco 60 series instead of the Professional because the 60 is still a sealed battery. As stated previously if you don't want acid fumes / leakage then don't use a battery with removable caps.
03-14-2012, 11:15 PM
#10
Melting Slicks
A sealed battery can still leak if the case cracks and that happens more than you think. A gel battery or glass matte battery like the Optima will not leak even if the case cracks. Again, the computer under the battery is a lot of money as is the wiring harness there. The Red Tops will last longer too. I got 7 years before I replaced it and I only replaced not because it did not work but because I just thought it was time. It might have lasted another 2 or 3 years?
03-14-2012, 11:45 PM
#11
Race Director
Guys,
Battery cases from the two major battery manufacturers have been strengthened in key areas, quite some time ago. In fact, the last spat of leaking batteries occured in yhe year 2000. That's 12 years ago!. From 2001 -2003, GM installed AGM batteries in all Corvettes. However, because of the AGM design's propensity to lose its charge when left alone for more than a few weeks, GM went with a non-AGM design (still used, today) having an essentially leakproof case. Any reports of leaking non-AGM batteries are very rare and you should not spend an extra $100 on a battery, just because they used to leak in the years 97-2000.
That being said, I must also point out that my 2001 OEM battery, an AGM type, was still starting my car after 6.5 years. I believe it had less than 700 CCA and RC of far less than 120.
I installed a 75 series Costco Kirkland battery in my C5 ($70) and it is still as strong as ever after years of use.
Battery cases from the two major battery manufacturers have been strengthened in key areas, quite some time ago. In fact, the last spat of leaking batteries occured in yhe year 2000. That's 12 years ago!. From 2001 -2003, GM installed AGM batteries in all Corvettes. However, because of the AGM design's propensity to lose its charge when left alone for more than a few weeks, GM went with a non-AGM design (still used, today) having an essentially leakproof case. Any reports of leaking non-AGM batteries are very rare and you should not spend an extra $100 on a battery, just because they used to leak in the years 97-2000.
That being said, I must also point out that my 2001 OEM battery, an AGM type, was still starting my car after 6.5 years. I believe it had less than 700 CCA and RC of far less than 120.
I installed a 75 series Costco Kirkland battery in my C5 ($70) and it is still as strong as ever after years of use.
03-15-2012, 06:38 PM
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Thanks for the info.. I developed the theory of using this exact Delco battery based on information on this and other forums while researching the service column lock issue.
I guess I am hoping that someone has this
AC Delco 78-6yr battery in their 2001. Not sure how the Chevy dealer will feel about me asking them to pull the battery out of stock for me to be able to measure it. They already mentioned no returns or exchanges on batteries.
Thanks again.
I guess I am hoping that someone has this
AC Delco 78-6yr battery in their 2001. Not sure how the Chevy dealer will feel about me asking them to pull the battery out of stock for me to be able to measure it. They already mentioned no returns or exchanges on batteries.
Thanks again.
Guys,
Battery cases from the two major battery manufacturers have been strengthened in key areas, quite some time ago. In fact, the last spat of leaking batteries occured in yhe year 2000. That's 12 years ago!. From 2001 -2003, GM installed AGM batteries in all Corvettes. However, because of the AGM design's propensity to lose its charge when left alone for more than a few weeks, GM went with a non-AGM design (still used, today) having an essentially leakproof case. Any reports of leaking non-AGM batteries are very rare and you should not spend an extra $100 on a battery, just because they used to leak in the years 97-2000.
That being said, I must also point out that my 2001 OEM battery, an AGM type, was still starting my car after 6.5 years. I believe it had less than 700 CCA and RC of far less than 120.
I installed a 75 series Costco Kirkland battery in my C5 ($70) and it is still as strong as ever after years of use.
Battery cases from the two major battery manufacturers have been strengthened in key areas, quite some time ago. In fact, the last spat of leaking batteries occured in yhe year 2000. That's 12 years ago!. From 2001 -2003, GM installed AGM batteries in all Corvettes. However, because of the AGM design's propensity to lose its charge when left alone for more than a few weeks, GM went with a non-AGM design (still used, today) having an essentially leakproof case. Any reports of leaking non-AGM batteries are very rare and you should not spend an extra $100 on a battery, just because they used to leak in the years 97-2000.
That being said, I must also point out that my 2001 OEM battery, an AGM type, was still starting my car after 6.5 years. I believe it had less than 700 CCA and RC of far less than 120.
I installed a 75 series Costco Kirkland battery in my C5 ($70) and it is still as strong as ever after years of use.
03-15-2012, 06:58 PM
#13
Burning Brakes
Thanks for the info.. I developed the theory of using this exact Delco battery based on information on this and other forums while researching the service column lock issue.
I guess I am hoping that someone has this
AC Delco 78-6yr battery in their 2001. Not sure how the Chevy dealer will feel about me asking them to pull the battery out of stock for me to be able to measure it. They already mentioned no returns or exchanges on batteries.
Thanks again.
I guess I am hoping that someone has this
AC Delco 78-6yr battery in their 2001. Not sure how the Chevy dealer will feel about me asking them to pull the battery out of stock for me to be able to measure it. They already mentioned no returns or exchanges on batteries.
Thanks again.
03-15-2012, 08:22 PM
#14
Team Owner
Group size 78 fits fine.
03-15-2012, 08:34 PM
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Thanks.. Post number 10 was helpful but because it is talking about the 60 series battery not the professional series that I would like to get unfortunately it isn't the final answer. I have found 2 different dimensions for the battery that I want 10.2" and 10.9". I am sure that you understand that I would like to make sure it will fit before buying it.
03-15-2012, 08:36 PM
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03-15-2012, 09:11 PM
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03-15-2012, 09:26 PM
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Great, thanks again for the info. I will pay a visit to the Chevy dealer very soon and get the car going again.
03-15-2012, 09:56 PM
#19
Team Owner
Group size, CCAs and RCs are the three main things I look at in a starting/cranking category battery.
HTH
Btw, bend over if you go to the dealer for a Delco and hope they give you a kiss on the cheek when they are done with you.
I would recommend going through a Delco distributor where you are.
03-15-2012, 10:04 PM
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I don't have it in front of me but I believe the dealer quoted me $120 minus a 10% discount for the 78-6yr professional battery. I don't think that is so bad.. Thanks again.
Bear in mind that a Group size 75 - also a side terminal battery - has a slightly smaller physical size and therefore cannot house the same amount - square inches-wise - of plate surface area as a 78 and that's the reason a 78 have the overall edge in RC, CCA and ultimately the lifespan as well. Not all 78s are created equal though as different mfrs will stuff more/less plates inside and that equates ultimately to the different warranty periods offered (more plates equal more CCAs, higher RCs and longer lifespans, etc).
Group size, CCAs and RCs are the three main things I look at in a starting/cranking category battery.
HTH
Btw, bend over if you go to the dealer for a Delco and hope they give you a kiss on the cheek when they are done with you. I would recommend going through a Delco distributor where you are.
Group size, CCAs and RCs are the three main things I look at in a starting/cranking category battery.
HTH
Btw, bend over if you go to the dealer for a Delco and hope they give you a kiss on the cheek when they are done with you.
I would recommend going through a Delco distributor where you are.