Stock Battery Question

kiln · 08-28-2011, 03:37 PM

Is the stock battery standard lead acid or AGM/Gel... I can't really find any info saying which kind of battery it is..

Ryan

Technic · 08-28-2011, 03:52 PM

Quote:

Originally Posted by kiln

Is the stock battery standard lead acid or AGM/Gel... I can't really find any info saying which kind of battery it is..

Ryan

Make a note of the P/N printed in the battery label and use www.realoem.com/bmw to cross-reference it... that will tell what you got for sure.

kiln · 08-28-2011, 03:55 PM

nm i figured it out.. they had a sticker saying "sealed battery" that was covered up by another sticker on top.. so mine is agm/gel and the battery is black.

Ryan

kiln · 08-28-2011, 04:03 PM

Quote:

Originally Posted by Technic

Make a note of the P/N printed in the battery label and use www.realoem.com/bmw to cross-reference it... that will tell what you got for sure.

Technic,

Its funny... the part #'s on my battery do not show up in the system.. the battery has two part #s on it

61 21 7 575 327
61 21 6 924 022

Technic · 08-28-2011, 04:14 PM

What is the battery capacity (in AH and A) listed in the label?

kiln · 08-28-2011, 04:27 PM

12 V 90ah 900a 160rc 900cca

PhillyNate · 08-28-2011, 04:37 PM

I think I read on here all the 2011's are AGM.

Technic · 08-28-2011, 04:40 PM

Quote:

Originally Posted by kiln

12 V 90ah 900a 160rc 900cca

That's AGM, P/N 61217594976

BobsM3Coupe · 08-29-2011, 12:40 AM

I read somewhere that the black case batteries are AGM and the white case are lead acid.

kiln · 08-29-2011, 12:41 AM

Quote:

Originally Posted by BobsM3Coupe

I read somewhere that the black case batteries are AGM and the white case are lead acid.

Yes. That is correct

1MOREMOD · 08-29-2011, 12:43 AM

well then the 2008 has the lead acid battery at least mine is white case.

JCtx · 08-29-2011, 11:54 AM

Quote:

Originally Posted by kiln

the battery has two part #s on it
61 21 7 575 327
61 21 6 924 022

My '08 (build date 06/08) also has the black battery, with the above numbers (first said 'S:' and second 'AW:'). Maybe those initials mean different markets

. But yes, it's weird neither one is a US p/n.

I was just going to replace it with an Interstate from Sam's or Champion from Walmart, thinking it was lead acid, but I MUCH prefer an AGM in case of an accident, and the trunk is where they last the most. Will just have to order one when the time comes, since nobody carries it locally. And can't imagine how much only local dealer in town wants when they charge $25 for a littler of TWS

.

speedaddictM3 · 12-17-2013, 05:47 PM

My build date is April 2008 and I also have the same part numbers on my battery:

S: 61 21 7 575 327
AW: 61 21 6 924 022

It also says Banner, which I googled and found to be an Austrian car battery manufacturer. No idea why realoem does not list our battery number

It's also black which I assume means AGM. Can I replace with a non AGM battery or does it have to be AGM?

kiln · 12-24-2013, 11:08 PM

You can replace the AGM with a lead acid but you will have to do special coding to do so.

If I were you.. I would replace with AGM with same specifications.

Ryan

08-28-2011, 03:37 PM	#1
kiln Lieutenant 53 Rep 545 Posts Drives: 2011 E90 M3 Join Date: Oct 2010 Location: New Orleans, LA iTrader: (7)	Stock Battery Question Is the stock battery standard lead acid or AGM/Gel... I can't really find any info saying which kind of battery it is.. Ryan
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08-28-2011, 03:55 PM	#3
kiln Lieutenant 53 Rep 545 Posts Drives: 2011 E90 M3 Join Date: Oct 2010 Location: New Orleans, LA iTrader: (7)	nm i figured it out.. they had a sticker saying "sealed battery" that was covered up by another sticker on top.. so mine is agm/gel and the battery is black. Ryan
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08-28-2011, 04:14 PM	#5
Technic Lieutenant General 2277 Rep 12,996 Posts Drives: 2021 i3S, 2024 i4 M50 Join Date: Apr 2005 Location: Florida iTrader: (18)	What is the battery capacity (in AH and A) listed in the label?
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08-28-2011, 04:27 PM	#6
kiln Lieutenant 53 Rep 545 Posts Drives: 2011 E90 M3 Join Date: Oct 2010 Location: New Orleans, LA iTrader: (7)	12 V 90ah 900a 160rc 900cca
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08-28-2011, 04:37 PM	#7
PhillyNate ENTHUSIAST 135 Rep 2,097 Posts Drives: 2010 Porsche Cayman Join Date: Apr 2011 Location: Philadelphia iTrader: (0) Garage List 2010 Porsche Cayman [0.00]	I think I read on here all the 2011's are AGM. __________________ "what I'm driving here...is an ending." Jeremy Clarkson 2010 Carrara White Porsche Cayman 6mt 2014 Whiteout Toyota GT-86 6mt(Sold 05/23/15) 2011 Alpine White BMW M3 6mt ZCP Coupe(forced retirement 06/06/14) 2008 Alpine White BMW 328i 6mt Coupe(retired 06/21/11)
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08-29-2011, 12:40 AM	#9
BobsM3Coupe Brigadier General 1447 Rep 3,919 Posts Drives: X5MC Join Date: Nov 2009 Location: California iTrader: (4)	I read somewhere that the black case batteries are AGM and the white case are lead acid.
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08-29-2011, 12:43 AM	#11
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	well then the 2008 has the lead acid battery at least mine is white case. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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12-17-2013, 05:47 PM	#13
speedaddictM3 Banned 4 Rep 264 Posts Drives: 2008 E90 M3 Join Date: Sep 2013 Location: Canada iTrader: (0)	My build date is April 2008 and I also have the same part numbers on my battery: S: 61 21 7 575 327 AW: 61 21 6 924 022 It also says Banner, which I googled and found to be an Austrian car battery manufacturer. No idea why realoem does not list our battery number It's also black which I assume means AGM. Can I replace with a non AGM battery or does it have to be AGM?
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12-24-2013, 11:08 PM	#14
kiln Lieutenant 53 Rep 545 Posts Drives: 2011 E90 M3 Join Date: Oct 2010 Location: New Orleans, LA iTrader: (7)	You can replace the AGM with a lead acid but you will have to do special coding to do so. If I were you.. I would replace with AGM with same specifications. Ryan
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