What type of battery is this?

Maud · 07-10-2015, 07:49 AM

Hi All,

Can someone tell me what type of battery this is? (e.g. AGM, etc.)

I tried looking up the p/n but can't seem to find the exact match.

Thank you!

bmw1racer · 07-10-2015, 08:12 AM

Looks like a standard lead-acid battery.

Maud · 07-10-2015, 08:20 AM

Quote:

Originally Posted by bmw1racer

Looks like a standard lead-acid battery.

Thank you! I thought so too - just wanted to confirm.

Cheers!

E82MSport · 07-10-2015, 02:29 PM

If you're replacing it the new battery will need to be coded to the vehicle.

http://www.1addicts.com/forums/showthread.php?t=388196

mr.fabulous · 07-15-2015, 04:22 PM

I've been told the 90Ah 720A batteries are AGM. Take it out of the car and give it a good shake; if it sloshes, it's basic lead-acid; no slosh == AGM. Either way, a good strategy is to email the fine folks (no affiliation) at GetBMWParts with your s/n, they'll tell you what the correct (same specs) replacement is.

Don't put in a new battery without registering it, don't change battery types without coding the replacement (and then registering it).

The Wind Breezes · 07-15-2015, 04:25 PM

You can buy a <$100 cable with some "unsupported" software from these guys that will let you do everything necessary to code the battery. I think bavtech cable / sw may be able to as well but don't quote me on that.

Mr Rooty Von Tooty · 07-18-2015, 11:11 AM

Quote:

Originally Posted by mr.fabulous

I've been told the 90Ah 720A batteries are AGM. Take it out of the car and give it a good shake; if it sloshes, it's basic lead-acid; no slosh == AGM. Either way, a good strategy is to email the fine folks (no affiliation) at GetBMWParts with your s/n, they'll tell you what the correct (same specs) replacement is.

Don't put in a new battery without registering it, don't change battery types without coding the replacement (and then registering it).

I've been told by the SA that the battery can be disconnected and reconnected without doing any software updates or changes. Why would this be done? For certain kinds of service.

Assuming this is true, why can't the old battery be replaced with a new identical battery without coding and registering? Also what happens if you replace the battery with another brand?

mr.fabulous · 07-18-2015, 12:17 PM

http://www.1addicts.com/forums/showthread.php?t=1101203

http://www.1addicts.com/forums/showthread.php?t=388196

http://www.1addicts.com/forums/showthread.php?t=1081902

Silenus · 07-19-2015, 11:33 AM

You don't need to take the battery out and shake it. If it has a magic-eye (that sight glass that indicates state of health), it's a standard lead-acid battery.

The battery needs to be registered so the power management system has a correct baseline for operation (charging intensity, level of consumer operation).

bmw1racer · 07-19-2015, 03:05 PM

Quote:

Originally Posted by Silenus

You don't need to take the battery out and shake it. If it has a magic-eye (that sight glass that indicates state of health), it's a standard lead-acid battery.

From the pic the OP posted, it does have a magic eye... Lead-Acid it is.

Maud · 07-19-2015, 03:20 PM

Wow! I didn't expect this much traction on this thread!

It is indeed the lead-acid battery. I am not replacing it (yet), but great info itt

Lucky1 · 07-20-2015, 06:06 PM

Is the magic eye the same that is supposed to be the colour green when the battery is healthy?

bmw1racer · 07-20-2015, 10:23 PM

Quote:

Originally Posted by Lucky1

Is the magic eye the same that is supposed to be the colour green when the battery is healthy?

Yup.

But as someone else mentioned it only indicates the health of one of the six cells in the battery...

07-10-2015, 07:49 AM	#1
Maud Private 18 Rep 52 Posts Drives: 1er, 3er Join Date: Aug 2011 Location: Canada iTrader: (0)	What type of battery is this? Hi All, Can someone tell me what type of battery this is? (e.g. AGM, etc.) I tried looking up the p/n but can't seem to find the exact match. Thank you! __________________ Got a 1!!
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07-10-2015, 08:12 AM	#2
bmw1racer bimmerphile, technogeek 1005 Rep 3,792 Posts Drives: 2012 E82 6MT Sport Join Date: Jun 2011 Location: SoCal iTrader: (0) Garage List 2012 BMW 128i Coupe [0.00]	Looks like a standard lead-acid battery. __________________
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07-10-2015, 02:29 PM	#4
E82MSport First Lieutenant 130 Rep 351 Posts Drives: 08' Crimson 135i Join Date: Sep 2013 Location: Rochester Hills - MI iTrader: (0)	If you're replacing it the new battery will need to be coded to the vehicle. http://www.1addicts.com/forums/showthread.php?t=388196 __________________ Ohlins Road & Track Coilovers / Apex ARC 8's 245/255-35 MPSS / Wagner Downpipes / Wagner EVOII Intercooler / ER Charge Pipe / Forge DV / PowerFlex RSFB / PowerFlex Differential Bushings / MFactory 3.46 Torsion LSD / MHD Flasher
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07-15-2015, 04:22 PM	#5
mr.fabulous Captain 218 Rep 893 Posts Drives: Women Crazy Join Date: Dec 2014 Location: Florida Gulf Coast iTrader: (0)	I've been told the 90Ah 720A batteries are AGM. Take it out of the car and give it a good shake; if it sloshes, it's basic lead-acid; no slosh == AGM. Either way, a good strategy is to email the fine folks (no affiliation) at GetBMWParts with your s/n, they'll tell you what the correct (same specs) replacement is. Don't put in a new battery without registering it, don't change battery types without coding the replacement (and then registering it). __________________ 2011 135i MSport 6MT AW/black, 72Kmiles, bone stock, moneymoneymoneymoneymoneymoneymoneymoneymoneymoney I LOVE THIS CAR
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07-15-2015, 04:25 PM	#6
The Wind Breezes Lieutenant Colonel 919 Rep 1,848 Posts Drives: 135i N55 DCT Join Date: Apr 2015 Location: USA iTrader: (0)	You can buy a <$100 cable with some "unsupported" software from these guys that will let you do everything necessary to code the battery. I think bavtech cable / sw may be able to as well but don't quote me on that.
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07-18-2015, 12:17 PM	#8
mr.fabulous Captain 218 Rep 893 Posts Drives: Women Crazy Join Date: Dec 2014 Location: Florida Gulf Coast iTrader: (0)	http://www.1addicts.com/forums/showthread.php?t=1101203 http://www.1addicts.com/forums/showthread.php?t=388196 http://www.1addicts.com/forums/showthread.php?t=1081902 __________________ 2011 135i MSport 6MT AW/black, 72Kmiles, bone stock, moneymoneymoneymoneymoneymoneymoneymoneymoneymoney I LOVE THIS CAR
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07-19-2015, 11:33 AM	#9
Silenus Second Lieutenant 98 Rep 233 Posts Drives: 2017 M3 Join Date: Apr 2014 Location: Bay Area, CA iTrader: (0)	You don't need to take the battery out and shake it. If it has a magic-eye (that sight glass that indicates state of health), it's a standard lead-acid battery. The battery needs to be registered so the power management system has a correct baseline for operation (charging intensity, level of consumer operation).
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07-19-2015, 03:20 PM	#11
Maud Private 18 Rep 52 Posts Drives: 1er, 3er Join Date: Aug 2011 Location: Canada iTrader: (0)	Wow! I didn't expect this much traction on this thread! It is indeed the lead-acid battery. I am not replacing it (yet), but great info itt __________________ Got a 1!!
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07-20-2015, 06:06 PM	#12
Lucky1 Colonel 669 Rep 2,083 Posts Drives: '08 128i Coupe SGM 6MT Join Date: Nov 2008 Location: Toronto iTrader: (0) Garage List 2015 Porsche 911 Ca ... [0.00] 2006 Z4 M Roadster [0.00]	Is the magic eye the same that is supposed to be the colour green when the battery is healthy?
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