Lotus Elan

Larger Battery

PostPost by: William2 » Sat Jul 11, 2015 4:32 pm

I have often thought that the standard 37 amp hour battery fitted to baby Elans is a bit marginal on cranking power particularly if the engine is tight after a rebuild. Having done some research I think a physically larger battery with a higher amp hour rating would still fit in the available space. It would be possible to stick some 1/4" thick foam rubber sheet on the grp base area so that a slightly wider battery could be fitted. I think a battery of at least 48 AH would fit, having the same length and height as the original. Also I don't want to spend a lot of money on a hybrid battery. Has anyone done the above?
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PostPost by: Galwaylotus » Sat Jul 11, 2015 5:44 pm

Recently bought a new Exide Excell Type 063 (standard size for Elan). It is a 44 Ahr 440 CCA battery and is excellent for my car. Not too dear either. 8)
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PostPost by: tvacc » Sun Jul 12, 2015 3:04 am

I realize you don't want to spend a lot of money, but you now have a a car worth more than 20k. An Odyssey battery 925 is like$149. Small and gives you all the cranking you will need.
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PostPost by: gav » Sun Jul 12, 2015 9:45 am

I run a rally spec Odyssey and have never had a problem.

I use a conditioner on it when not in use to keep it up to scratch.

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PostPost by: tvacc » Sun Jul 12, 2015 11:09 am

I have spoken to the Odyssey engineers. Unless you are using a CTEK charger you are probably doing more harm than good with a conditioner. It is best to leave it fully charged, disconnected. And the colder the better. Should last for years that way.
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PostPost by: webbslinger » Sun Jul 12, 2015 2:58 pm

I've been using a little Odyssey 680 with no problems. I did get a smart charger with it and occasionally top it off as the voltage from my alternator is marginal when running with the lights on. The 680 works great for me.
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PostPost by: tvacc » Sun Jul 12, 2015 5:44 pm

Yes, the 680 will probably work fine. I have a 71 Elan and the 925 fits in there so that is what I used.
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PostPost by: mark030358 » Sun Jul 12, 2015 10:10 pm

I have an Odyssey battery fitted, went straight in. Just disconnect after a good run and it holds its charge.
Magic piece of kit.

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PostPost by: l10tus » Wed Jul 15, 2015 9:07 pm

I thought the OEM was an 037/8 battery ?
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PostPost by: Galwaylotus » Wed Jul 15, 2015 9:12 pm

Oops! Probably right. There was a type 063 in my car when I bought it and I didn't check to see if it was standard. It works just fine anyway.
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