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Joined: Nov 2015
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Just barreling along
Needs to Get Out More!
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Just barreling along
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Nick if you could post the 'code' off your existing battery (& you may find a date of mfr too) it can be cross referenced

My pal swears by Varta

My local AA techie likes Yuasa


Jon M
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Needs to Get Out More!
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The best battery charger in the world can't fix a knackered battery. Symptoms suggest exactly that. Don't waste money on expensive batteries unless you plan to use your car regularly.


Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
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Nick

I had this on my Aero S1.

Battery was always kept on trickle charge ;permanent and then timed intervals - (but thats another story!).I didn't always get the dreaded 'click' but often enough to be annoying.

I fitted a new Odyssey battery (I think I'm on my 3rd!) and it did improve a little ,but always reverted.

Having some other work done I bit the bullet and got the starter motor replaced and ........end of problem thumbs
It now fires on the button.I believe the starter gets well 'cooked' from the engine heat, coupled with (perhaps) a potentially degraded earth and a battery just off top performance and Bingo swear

I know you said the starter has been replaced but, was it a decent unit - lots of poor quality re-furbed and Chinesium copies out there.Also, I'm not sure how long their shelf life is in the un-friendly environment.

Worth checking before investing in a new battery.....

James


Aero8 , Series 1 - Boston Green
RR Evoque P300E Autobiography
Smart Brabus Convertible
Monkey Z125
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T
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T
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I have the same problem, car is permanently on a CTEK, shows full charge and kept on frost setting. If its been standing for any length of time I always use a jump pack as well, works!


1969 4/4
1995 plus 8
1996 Plus 4 4seater
2002 Aero S1
2013 M3W
2014 Plus 8
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NickCW Offline OP
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Thanks all, presume it has the standard Odyssey on it but will check at some point! I wanted to fire it before covering it up so will need to uncover it to investigate, but that may have to wait with baby 3 imminent.. cheers

Originally Posted by James B W
Nick

I had this on my Aero S1.

Battery was always kept on trickle charge ;permanent and then timed intervals - (but thats another story!).I didn't always get the dreaded 'click' but often enough to be annoying.

I fitted a new Odyssey battery (I think I'm on my 3rd!) and it did improve a little ,but always reverted.

Having some other work done I bit the bullet and got the starter motor replaced and ........end of problem thumbs
It now fires on the button.I believe the starter gets well 'cooked' from the engine heat, coupled with (perhaps) a potentially degraded earth and a battery just off top performance and Bingo swear

I know you said the starter has been replaced but, was it a decent unit - lots of poor quality re-furbed and Chinesium copies out there.Also, I'm not sure how long their shelf life is in the un-friendly environment.

Worth checking before investing in a new battery.....

James

Thanks James - good point, I will have to check through the paperwork - majority of the work on it has been done by the factory, so with any luck the starter was as well and it is a genuine unit, if I recall the invoice wasn't cheap..

It has only done about 5/600 miles since the work was done, so hopefully it hasn't been cooked to much - but if it is a cheap unit then who knows.

Either way hopefully that all points to the starter being ok, and it being the easier/cheaper fix! drive


Aero 8 GTN #11

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My Roadster S1 did this . The cause was poor earthing. They looked ok but the engine to chassis earth when unbolted was heavily coroded. Worth a check. As RichardV6 says batteries are not so expensive & if it is old I would replace it anyway.


JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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L - Learner Plates On
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Hi, I've got some experience of this on my S1 and have found a fix that works for me, assuming battery is healthy, I use an Odyssey gel model:

1. Have the battery on a smart charger, (e.g Ctek mxs 5.0) on a timer for 4 hours per day, on an ongoing basis. 4 hours a day limit prevents frying of the cells

2. When more than 10 clicks to start, spray some WD40 around the gap on the perimeter of the green start button, then with ignition off, about 30-50 repeated pushes of the button to work it in

3. Car should start within 3 attempts.

4. Repeat step 2 as needed , normally after an extended period without use

Hope this helps

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Just barreling along
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Just barreling along
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^ I auto sparky told me years ago to avoid WD40 type stuff on any switches as eventually it leaves a sticky NON conductive deposit on the contacts within


Jon M
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Originally Posted by Volvos60s60
Hi, I've got some experience of this on my S1........Have the battery on a smart charger, (e.g Ctek mxs 5.0) on a timer for 4 hours per day, on an ongoing basis. 4 hours a day limit prevents frying of the cells.
I understand that principle, but I thought that Ctek's are supposed to be "conditioners" and you can leave them connected to the battery and plugged in to the mains, and go away and forget about them (long-term storage). Wouldn't a 4-hour blast once a day make the charger cycle start all over again ?

Also, has anyone found an (aftermarket ?) alternative to the Ctek leads, which in cold weather go inconveniently stiff.


Peter
2009 3-litre Roadster "Ivor", royal ivory / green
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Use dielectric grease.

gmg

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