E89 Battery - Google search!! (Typical)

N52 ZED

N52 ZED

Member
 West Midlands
Hi All - Happy Easter,

Trying to work out best / most appropriate battery for an E89 30i (manual).

Currently has an AGM 096 but (without measuring it yet) it might take an an AGM 115.

A quick google search seems to recommend various variants but not the 30i.

What do 30i users run? Is their much difference in either? Start up power / capacity / charge rate seem the minor differences (accepting minor differences and electrics could equal big differences in the long run.)

Cheers.
 

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It needs to be an AGN of 70ah or 80ah ,,non conforming battery types won't connect due to terminal location /size/ lenght and /or won't cinch dow..

Once coded and registered the DME handles everything transparently

For most its a mute point 70ah or 80ah ..as you could expect its only 13% capacity increase
 
B21 said:
It needs to be an AGN of 70ah or 80ah ,,non conforming battery types won't connect due to terminal location /size/ lenght and /or won't cinch dow..

Once coded and registered the DME handles everything transparently

For most its a mute point 70ah or 80ah ..as you could expect its only 13% capacity increase
Click to expand...
Have you turned into the world's worst AI bot, Peter?

Or are you drunk.........again? ;)
 
N52 ZED said:
Hi All - Happy Easter,

Trying to work out best / most appropriate battery for an E89 30i (manual).

Currently has an AGM 096 but (without measuring it yet) it might take an an AGM 115.

A quick google search seems to recommend various variants but not the 30i.

What do 30i users run? Is their much difference in either? Start up power / capacity / charge rate seem the minor differences (accepting minor differences and electrics could equal big differences in the long run.)

Cheers.
Click to expand...
It doesn't matter which engine size/ model you have.
As long as it physically fits the 'hole' properly (so can be bolted down) and is of a minimum amperage (75 ish) and the CCA (cold crank amperage) is sufficient just pick what you fancy.
The 30i doesn't have stop/start, so in theory it doesn't even need to be an AGM.

Go to somewhere like www.tanya.co.uk and put your reg or car model in. It will come up with loads of options of the correct physical size.
 
Pondy said:
Have you turned into the world's worst AI bot, Peter?

Or are you drunk.........again? ;)
Click to expand...
All hand crafted mon ami ..Bot 3.0 in development!-:) No sauce for me tonight..Lapsang Souchong
 
Pondy said:
It doesn't matter which engine size/ model you have.
As long as it physically fits the 'hole' properly (so can be bolted down) and is of a minimum amperage (75 ish) and the CCA (cold crank amperage) is sufficient just pick what you fancy.
The 30i doesn't have stop/start, so in theory it doesn't even need to be an AGM.

Go to somewhere like www.tanya.co.uk and put your reg or car model in. It will come up with loads of options of the correct physical size.
Click to expand...
Your incorrect the AGM spec has nothing to do with stop /start on E89s its to do with regenerative charging!

That fries flood cell batteries PDQ

Pay attention and don't spout fake news!
 
B21 said:
the AGM spec has nothing to do with stop /start on E89s its to do with regenerative charging!

That fries flood cell batteries PDQ

Pay attention and don't spout fake news!
Click to expand...
Nonsense. Absolute nonsense.
I have four cars in front of me, three have 'regenerative charging'. The only one which doesn't have regenerative braking is my old Z3. And guess which one is the only one specified with an AGM battery? Yep, it's the Z3.
Ford has regen and has a bog standard lead acid battery (which is too small but that is a Ford issue).
Audi is an MHEV and has regen everything but has a normal lead acid battery (it does have a small Li-ion aswell but that is charged differently).
VW has regen and normal lead acid.

I have had at least eight other cars with regen and none (except the BMWs) have had AGM batteries.

So there! :p

I will concede that AGM has nothing to do with stop/start though. It seems that messrs BMW are fans of AGM batteries. They are also fans of run flat tyres.
 
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Pondy said:
Nonsense. Absolute nonsense.
I have four cars in front of me, three have 'regenerative charging'. The only one which doesn't have regenerative braking is my old Z3. And guess which one is the only one specified with an AGM battery? Yep, it's the Z3.
Ford has regen and has a bog standard lead acid battery (which is too small but that is a Ford issue).
Audi is an MHEV and has regen everything but has a normal lead acid battery (it does have a small Li-ion aswell but that is charged differently).
VW has regen and normal lead acid.

I have had at least eight other cars with regen and none (except the BMWs) have had AGM batteries.

So there! :p
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BMW makes it clear in ALL its documentation that only AGM is suitable..

What anyone else says or does is immaterial to the OP who asked a BMW specific question.

You are doing a dis service to this Forum by propagating your opinion unless you have proven documentary evidence such as " I've used a shitty battery in my E89 for 12 years and its still going strong and there are at least 100 fellow owners who have done the same"

In the absence of that why don't you just be helpful and if you want to make an opinion state it clearly rather than propagate it as a fact or BMW approved policy?

FWIW Audi uses a 48v liquid cooled battery to dump its regenerative energy into hence why the 12vb battery doesn't need that capability!

www.audi-mediacenter.com

MHEV plus: the next generation of hybridization at Audi

With the new A5 and Q5 series built on the Premium Platform Combustion (PPC), Audi has launched its first combustion engines with the new MHEV plus technology. With its unique interplay between the powertrain generator (PTG), belt alternator starter (BAS), and a lithium iron phosphate battery...
www.audi-mediacenter.com www.audi-mediacenter.com
 
B21 said:
BMW makes it clear in ALL its documentation that only AGM is suitable..

What anyone else says or does is immaterial to the OP who asked a BMW specific question.

You are doing a dis service to this Forum by propagating your opinion unless you have proven documentary evidence such as " I've used a shitty battery in my E89 for 12 years and its still going strong and there are at least 100 fellow owners who have done the same"

In the absence of that why don't you just be helpful and if you want to make an opinion state it clearly rather than propagate it as a fact or BMW approved policy?

FWIW Audi uses a 48v liquid cooled battery to dump its regenerative energy into hence why the 12vb battery doesn't need that capability!

www.audi-mediacenter.com

MHEV plus: the next generation of hybridization at Audi

With the new A5 and Q5 series built on the Premium Platform Combustion (PPC), Audi has launched its first combustion engines with the new MHEV plus technology. With its unique interplay between the powertrain generator (PTG), belt alternator starter (BAS), and a lithium iron phosphate battery...
www.audi-mediacenter.com www.audi-mediacenter.com
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Don't get the hump with me for disagreeing with your 'opinion' with my own.

I know you have an agenda (forthcoming, eagerly awaited book?) but your 'theoretical googled facts' are still not as good as real-life ones.

I am not going to fall out with you (again) Peter, because I don't care enough about fecking batteries. :p
 
When i first bought my car i asked BMW about adding the servotronic, originally a Ā£200 option.
They said i needed to upgrade from 70 to 80ah and bigger alternator besides the software upgrade, so i didn't bother.
So it seems cars run two different set ups.
 
Thanks all.

Yes the 30i isnā€™t a stop / start like other cars Iā€™ve driven (doesnā€™t stop when stationery and in neutral and clutch disengaged) but it does have a stop / start button (more like an on / off button) I suppose.

Looks like BMW do recommend the AGM battery though - lots of other electronics going on in the E89.

The current ā€œholeā€ has an 096 in it and it looks like thereā€™s room to spare and maybe the 115 will fit.

Both are recommended and come up on ā€œreg searchesā€ and I guess you pays your money and takes your choice being unelectronically minded.

Without it being a ā€œnoā€ if it fits then I guess the bigger the better. (Iā€™m still trying to avoid repeat issues of the windows closing ā€œjudderā€ on the ā€œroof closeā€ cycle and (trying to) rule out one less issue in this regard.)

Good to understand the views of others more knowledgeable here so thank you.
 
flybobbie said:
I virtually never operate roof unless engine running.
Why ask a donkey to do a mules work.
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My engine was running when I encountered this window close issue, but know the battery is low and needs replacing.

I canā€™t rule out a low battery still causing me issues even when the engine was running so doing what I can to stop the ā€œnext issueā€.

šŸ¤žšŸ¼šŸ¤Ŗ
 
Let us know which battery you choose (curious to see if bigger one fits) I have the same car and need a new one myself soon.
Oh and do not forget to get the battery coded to the car! šŸ˜Š
 
If you have a obd reader like my Foxwell nt520, you can see a histogram of battery capacity.
My battery last time wasn't coded properly so it ran mainly around 60% capacity.
Didn't take long for a low volt warning to come up when messing around with roof or radio.
 
Bigger battery check to see if there are extra clamping holes for the L bracket.
Or could leave it off i guess, if you can stop it sliding around.
 
Erudite-Idiot said:
Let us know which battery you choose (curious to see if bigger one fits) I have the same car and need a new one myself soon.
Oh and do not forget to get the battery coded to the car! šŸ˜Š
Click to expand...
Will do EI and thanks. Iā€™m hoping BimmerLink will help me code it. If not I guess it will be back down to Halfords. šŸ¤Ŗ
 
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