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Aug 24th, 2023
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Joined: Feb 2016
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Talk Morgan Guru
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Talk Morgan Guru
Joined: Feb 2016
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Today after the charge it showed 13.10 Volts....... Yes that would be surface charge, whereby the chemical composition that dictates a fully charged battery had not or could not be absorbed into the thickness of the plates. Think of it as a form of super charging. It will leave the electrolyte closer to pure acid though which over time will errode the plates. That's why smart chargers drop to a float charge voltage when near full charge is sensed. Some ECU driven alternators with remote regulation offer this as well. Putting the headlights on for a minute will quickly remove the surface charge.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Roadster Guru Member of the Inner Circle
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OP
Roadster Guru Member of the Inner Circle
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Posts: 21,866 Likes: 167 |
It's a modern CTEK conditioner Richard. I don't leave it permanently connected, I let the battery cycle down a few days and then top it up overnight. My Roadster battery had managed 13 years when I replaced it last year.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Talk Morgan Sage
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Talk Morgan Sage
Joined: Apr 2014
Posts: 6,827 Likes: 59 |
It's a modern CTEK conditioner Richard. I don't leave it permanently connected, I let the battery cycle down a few days and then top it up overnight. My Roadster battery had managed 13 years when I replaced it last year. I thought CTEK ran down the battery itself and then recharged it?
Best Regards
Lang may yer lum reek
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Joined: Dec 2008
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Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
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It has multiple features Bob.
That's one option I think.
The only thing it can't do is make tea.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Apr 2014
Posts: 6,827 Likes: 59
Talk Morgan Sage
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Talk Morgan Sage
Joined: Apr 2014
Posts: 6,827 Likes: 59 |
It has multiple features Bob.
That's one option I think.
The only thing it can't do is make tea. Waste of space, then. 
Best Regards
Lang may yer lum reek
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Joined: Dec 2008
Posts: 21,866 Likes: 167
Roadster Guru Member of the Inner Circle
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OP
Roadster Guru Member of the Inner Circle
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Not really, I have a tea maker in the house..........
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Black Rat Charter Member
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Black Rat Charter Member
Joined: May 2014
Posts: 5,108 Likes: 56 |
Not really, I have a tea maker in the house.......... Mrs W ? 
Keith
2013 narrow bodied + 4 Ruby.
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Joined: Dec 2008
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Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 21,866 Likes: 167 |
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Mar 2009
Posts: 2,255 Likes: 2
Talk Morgan Expert
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Talk Morgan Expert
Joined: Mar 2009
Posts: 2,255 Likes: 2 |
Oooh John and Dave, My 2010 Roadster immobiliser lamp flashed whether the key is in or out. At least it goes out when the key is turned. Ah I just saw your bit about your Roadster Dave so all is well.
Last edited by meabh; 06/01/19 04:05 PM.
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Joined: Feb 2016
Posts: 7,920 Likes: 216
Talk Morgan Guru
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Talk Morgan Guru
Joined: Feb 2016
Posts: 7,920 Likes: 216 |
Hi Dave, just explaining why you saw the unusually high off load battery voltage shortly after charging. It would have bled down to 12.7 volts over time anyway.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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