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Jun 14th, 2026
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Joined: Mar 2014
Posts: 1,737 Likes: 55
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Mar 2014
Posts: 1,737 Likes: 55 |
I fitted an Exide AGM 12-31 about a year ago. No problems so far, it's always kept on CTEK charger and starts the engine much easier than the old Banner. Fingers crossed it gives me a few years before replacement.
In light of many recent experiences, I think the advice has to be 'don't risk it'.
Andy
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Joined: Sep 2019
Posts: 141 Likes: 3
L - Learner Plates On
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L - Learner Plates On
Joined: Sep 2019
Posts: 141 Likes: 3 |
So how many acute failures have there actualy been among members? All batteries fail at some point and I have experienced other well known brands fail in a relatively short time. Has there been any feedback from Exide?
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
i had an OEM battery fail that was probably a dying regulator. Regulator finally and i put in the Harley replacement and good voltage ever since. i replaced the battery with an AntiGravity battery and it works very well now.
Last edited by LightSpeed; 25/10/22 12:59 AM.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Jun 2012
Posts: 2,242 Likes: 72
Talk Morgan Expert
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OP
Talk Morgan Expert
Joined: Jun 2012
Posts: 2,242 Likes: 72 |
From our small M3W community there have been at least ten Exide 12-31 failures that we know of. It is not a case of them getting old and slowly expiring but a quick and total failure and this failure mode has been only with these batteries. There were quite a few in use as the specification for them is pretty much ideal for the M3W, unfortunately the reliability isn't.
No feedback from Exide, most people are just pleased to get going again after being stranded at the side of the road to bother taking the dead battery back to Exide. If you have one of these batteries fitted I would say it would be wise to replace it sooner rather than later, unless you enjoy lengthy, unplanned stops and calling breakdown services.
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Joined: Aug 2016
Posts: 263 Likes: 2
Learner Plates Off!
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Learner Plates Off!
Joined: Aug 2016
Posts: 263 Likes: 2 |
I put an Exide AGM 12-31 on my 3 wheeler last December. Yesterday I tried to start it and it was completely flat despite the fact I had used the car only a few days before so should have been fine. Tried charging with my CTEK MXS 5 and it charged to step 5 then the fault light came on - cannot keep charge and may need to be replaced. Good job it was on my drive!
2021 Morgan Plus Four
2012 Morgan Three Wheeler
2020 Land Rover Defender 110
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Joined: Apr 2017
Posts: 91
Just Getting Started
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Just Getting Started
Joined: Apr 2017
Posts: 91 |
Jonathan G,
Sorry to hear you also have a failed Exide AGM battery - fortunately failed at home and did not leave you at the roadside!
I have finally managed to make contact with the manufacturer and Exide are now keen to analyse their AGM 12-31 batteries that have failed prematurely.
They are arranging to collect mine which failed after 18 months and have asked if there are others examples available?
Do you still have yours that Exide could collect to continue with their investigations?
Whilst writing if anyone else has an example of an Exide AGM 12-31 prematurely failed battery that they are willing to make available to Exide please post and I will happily coordinate with Exide.
Bob
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Joined: May 2012
Posts: 1,796 Likes: 5
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,796 Likes: 5 |
I have 1 plus another on the car which hasn't failed as yet.
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Joined: Aug 2016
Posts: 263 Likes: 2
Learner Plates Off!
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Learner Plates Off!
Joined: Aug 2016
Posts: 263 Likes: 2 |
Yes Bob I still have it. What do I need to do?
2021 Morgan Plus Four
2012 Morgan Three Wheeler
2020 Land Rover Defender 110
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Joined: Mar 2014
Posts: 1,737 Likes: 55
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Mar 2014
Posts: 1,737 Likes: 55 |
Jonathan G,
Sorry to hear you also have a failed Exide AGM battery - fortunately failed at home and did not leave you at the roadside!
I have finally managed to make contact with the manufacturer and Exide are now keen to analyse their AGM 12-31 batteries that have failed prematurely.
They are arranging to collect mine which failed after 18 months and have asked if there are others examples available?
Do you still have yours that Exide could collect to continue with their investigations?
Whilst writing if anyone else has an example of an Exide AGM 12-31 prematurely failed battery that they are willing to make available to Exide please post and I will happily coordinate with Exide.
Bob
Good work Bob. Let's hope that their investigations are thorough.
Andy
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Joined: Apr 2017
Posts: 91
Just Getting Started
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Just Getting Started
Joined: Apr 2017
Posts: 91 |
Thanks Jonathan - just responded to your PM for Exide to collect.
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