Charging battery

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lizzie
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Re: Charging battery

Post by lizzie » 19 Jan 2014, 18:32

Glad you've got it sorted Jas :-)


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Re: Charging battery

Post by jashammy » 20 Jan 2014, 14:45

One totally flat car again :-(
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Re: Charging battery

Post by M60NJP » 20 Jan 2014, 14:55

M60NJP wrote: I don't know that particular model but it may be telling you the host battery is beyond salvation........
It has to be said - 'Told you so'...............

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Re: Charging battery

Post by M60NJP » 20 Jan 2014, 15:02

Replcements are £85-130 depending whether you go for 100 aH or 110aH

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Re: Charging battery

Post by jashammy » 20 Jan 2014, 17:40

Ha ha cheers Neal,thing is RAC tested the battery & said it's ok.as usual I know nothing about this type of thing. I just spoke to Redish Motorsport & they said the battery needs to be AGM,quick look on eBay gives me £159,BMW genuine is £285. Plus 30 mins labour to code it to the car. How can I tell if the battery's shit or something's drawing power from the car,i guess I gotta spend £200 on a battery & keep my fingers crossed.
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Re: Charging battery

Post by M60NJP » 20 Jan 2014, 21:22

You don't have to get a gel battery. Standard is gel in the verts for liability cover in the U.S in the event of rolling it. I used a lead acid in mine fora couple of years (see prices above....) It doesn't need to be coded to the car......I fitted mine in a matter of minutes.

To test for battery drain, put a meter across it. It should read around 12.6v. A dead battery will read 12.4 or less. But your issue is the battery not holding the charge?

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Re: Charging battery

Post by jashammy » 20 Jan 2014, 21:42

Ah that's good to hear Neal,no issues after fitting yourself,I'll have a look & see what's in there tomorrow,I know it's a BMW 850 but that's all I can remember.because mine dosnt get used everyday & quite often only gets used on short journeys do you think the extra money on a AGM is worth it ?
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Re: Charging battery

Post by M60NJP » 20 Jan 2014, 22:25

jashammy wrote:Ah that's good to hear Neal,no issues after fitting yourself,I'll have a look & see what's in there tomorrow,I know it's a BMW 850 but that's all I can remember.because mine dosnt get used everyday & quite often only gets used on short journeys do you think the extra money on a AGM is worth it ?
I'm no battery expert but as I understand them, gel batts are for safety only. The amperage and CCA should be the same. The 6s
do draw a lot if current so I'd recommend £30 on a trickle charger instead.

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Re: Charging battery

Post by jashammy » 20 Jan 2014, 22:32

I thought the agm battery was a newer better style battery,is a gel battery the same as a "absorbed glass Matt "battery ?
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Re: Charging battery

Post by M60NJP » 20 Jan 2014, 22:33

jashammy wrote:I thought the agm battery was a newer better style battery,is a gel battery the same as a "absorbed glass Matt "battery ?
Yup.

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