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Any tutorials out there on converting a Group 27 to a AGM ? #3269020
11/07/24 11:04 PM
11/07/24 11:04 PM
Joined: Feb 2005
Posts: 2,176
God's Country - Etowah, TN.
A34 Offline OP
top fuel
A34  Offline OP
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Joined: Feb 2005
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God's Country - Etowah, TN.
Hey Guys,

I have an old Group 27 that I'd like to convert to a modern AGM battery. Any tutorials out there on how to do it, what parts to buy, etc?

Thanks!


God Bless America, Our Troops and Their Families !

DEO VINDICE
Re: Any tutorials out there on converting a Group 27 to a AGM ? [Re: A34] #3269069
11/08/24 09:23 AM
11/08/24 09:23 AM
Joined: Dec 2003
Posts: 6,741
KY
65pacecar Offline
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Re: Any tutorials out there on converting a Group 27 to a AGM ? [Re: 65pacecar] #3269129
11/08/24 01:10 PM
11/08/24 01:10 PM
Joined: Nov 2003
Posts: 1,033
Southeast Virginia
68jim Offline
super stock
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Southeast Virginia
Messy job for sure - I did this to my battery in the RR about 7-8 years ago and cranks over the Hemi with no problems. I tapped the bottom of the posts to secure the terminal lugs but also like the idea of creating the copper sleeves to gain the better fit for standard battery connections.

Re: Any tutorials out there on converting a Group 27 to a AGM ? [Re: 65pacecar] #3269243
11/08/24 09:44 PM
11/08/24 09:44 PM
Joined: Feb 2005
Posts: 2,176
God's Country - Etowah, TN.
A34 Offline OP
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Originally Posted by 65pacecar


Thanks! I'll check it out!


God Bless America, Our Troops and Their Families !

DEO VINDICE
Re: Any tutorials out there on converting a Group 27 to a AGM ? [Re: 68jim] #3269244
11/08/24 09:45 PM
11/08/24 09:45 PM
Joined: Feb 2005
Posts: 2,176
God's Country - Etowah, TN.
A34 Offline OP
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A34  Offline OP
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Originally Posted by 68jim
Messy job for sure - I did this to my battery in the RR about 7-8 years ago and cranks over the Hemi with no problems. I tapped the bottom of the posts to secure the terminal lugs but also like the idea of creating the copper sleeves to gain the better fit for standard battery connections.
''

Good idea!


God Bless America, Our Troops and Their Families !

DEO VINDICE
Re: Any tutorials out there on converting a Group 27 to a AGM ? [Re: A34] #3269257
11/08/24 11:26 PM
11/08/24 11:26 PM
Joined: Jan 2004
Posts: 4,668
Motor City
6
6PKRTSE Offline
master
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Joined: Jan 2004
Posts: 4,668
Motor City
I have converted/gutted 3 of my batteries all with great results. As the above link showed. Here is mine.

Odyssey inside of stock battery.jpgmopar red cap battery.jpg100_1698.jpg

1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: Any tutorials out there on converting a Group 27 to a AGM ? [Re: 6PKRTSE] #3269550
11/10/24 08:02 AM
11/10/24 08:02 AM
Joined: Dec 2003
Posts: 6,741
KY
65pacecar Offline
master
65pacecar  Offline
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KY
Does anyone sell an empty case to save on the messy cleanup process?

Re: Any tutorials out there on converting a Group 27 to a AGM ? [Re: 65pacecar] #3269606
11/10/24 12:13 PM
11/10/24 12:13 PM
Joined: Sep 2003
Posts: 20,567
north of coder
moparx Offline
"Butt Crack Bob"
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north of coder
i can't answer that question, but maybe a "topper" would work for you ? shruggy
that is, if they are made in a "quality" model anymore..............
just tossing this out there, as i have no experience with these things.
beer

Re: Any tutorials out there on converting a Group 27 to a AGM ? [Re: A34] #3269641
11/10/24 02:34 PM
11/10/24 02:34 PM
Joined: Jan 2003
Posts: 21,760
N.E. OHIO, USA
A12 Offline
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N.E. OHIO, USA
Originally Posted by A34
Hey Guys,

I have an old Group 27 that I'd like to convert to a modern AGM battery. Any tutorials out there on how to do it, what parts to buy, etc?

Thanks!


Do you me convert to a lithium-ion battery and not an AGM battery? AGM is a semi "wet" or flooded battery with an absorbent material between the plates that doesn't leak or spill for the most part as the glass mat maintains the acid inside the battery, Group 27 (and group 24) AGM OE copy batteries have been around for a while (hard to find lately shruggy ) if that's what you're looking for but I think you're for a basically dry and light weight lithium-ion battery or a way to convert an old failed AGM battery case by putting a smaller lithium-ion battery inside. Is this the plan? AGM = Absorbent Glass Mat

Re: Any tutorials out there on converting a Group 27 to a AGM ? [Re: A12] #3269746
11/10/24 10:26 PM
11/10/24 10:26 PM
Joined: Feb 2005
Posts: 2,176
God's Country - Etowah, TN.
A34 Offline OP
top fuel
A34  Offline OP
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Joined: Feb 2005
Posts: 2,176
God's Country - Etowah, TN.
Originally Posted by A12
Originally Posted by A34
Hey Guys,

I have an old Group 27 that I'd like to convert to a modern AGM battery. Any tutorials out there on how to do it, what parts to buy, etc?

Thanks!


Do you me convert to a lithium-ion battery and not an AGM battery? AGM is a semi "wet" or flooded battery with an absorbent material between the plates that doesn't leak or spill for the most part as the glass mat maintains the acid inside the battery, Group 27 (and group 24) AGM OE copy batteries have been around for a while (hard to find lately shruggy ) if that's what you're looking for but I think you're for a basically dry and light weight lithium-ion battery or a way to convert an old failed AGM battery case by putting a smaller lithium-ion battery inside. Is this the plan? AGM = Absorbent Glass Mat


I did not think of a lithium-ion battery, but I suppose that would definitely be better. What I have is a failed repro battery, that is probably a lead-acid one and not AGM. Are you aware of any lithium ones that would do the trick here? Thanks!


God Bless America, Our Troops and Their Families !

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