Replacing Battery Options

[oolas3]

Originally Posted by Move Over

Can you share what part number that is? I was looking for that thread and couldn't find it. Thank you!

Also curious to how you saved 50? The OEM battery is 60. Unless the z4m battery is 10 lbs then that's a hell of a lightweight battery!

Part number: 61217553952. 70ah 760cca 45 lbs.

[oolas3]

Originally Posted by Move Over

What's the AH?

92ah. https://www.pepboys.com/product/details/838838/00165

[Move Over]

Originally Posted by spr

What is the point of the coding?

As your battery gets older the alternator charges it differently. The new battery needs to be registered to let the car (charging system) know that you have a new battery. Basically resets it so your alternator is not trying to charge a new battery at the same rate as the old one was being charged.

[vsix]

Originally Posted by Longboarder

I save 50 pounds off the car by getting a BMW Z4M battery. Full win.

Aaah we drive ///M's I think by changing the batt. for a smaller one, we are definately missing the point here.
As for me, I use an 95 Ampere Batt from Varta.

[Move Over]

Originally Posted by m3m3mr

Part number: 61217553952. 70ah 760cca 45 lbs.

So you save 15 lbs, not 50.

Still a win, just not as much of a win. Haha.

[M3Bimmer77]

Originally Posted by Move Over

So you save 15 lbs, not 50.

Still a win, just not as much of a win. Haha.

15lbs off the battery and 35 lbs installing it!!!

[alpina-527]

Not sure about the USA but in Britain, our Oem batteries are made by 'Banner'.

[Move Over]

Originally Posted by alpina-527

Not sure about the USA but in Britain, our Oem batteries are made by 'Banner'.

My OEM battery was a Banner battery as well. The BMW replacement was an Exide online. I'm not sure who the OEM manufacture was from the dealer. Looks just like the Die Hard I just installed though.

Who knows. I like my 3 year warranty over the 0 year warranty (since my car is out of warranty) offered from the dealer. Makes perfect sense.

[Move Over]

Originally Posted by M3Bimmer77

15lbs off the battery and 35 lbs installing it!!!

Lol! 35lbs of sweat and blood

[Longboarder]

Yeah was being facetious about the weight lol.

But the 15 pound-savings partially offset the 5 gallon water/ice tank installed in the passenger-side trunk to help with IAT reduction.

No issues with the z4m battery. Works just like the stock m3 battery.

[Move Over]

Originally Posted by Longboarder

Yeah was being facetious about the weight lol.

But the 15 pound-savings partially offset the 5 gallon water/ice tank installed in the passenger-side trunk to help with IAT reduction.

No issues with the z4m battery. Works just like the stock m3 battery.

Haha. Internet sarcasm fail.

[mazing M3]

When i change my battery this spring i am going with interstate. Great battery had it in my 540 6-speed. Never had a problem.

[radiofrequency]

Check the link below out, I have purchased quite a few items from this vendor, great service and pricing:

http://www.getbmwparts.com/parts/201...agramCallOut=1

[M3SCUZZI]

Direct replacement for e92 m3 2013 for reference:

[tom @ eas]

Originally Posted by spr

What is the point of the coding?

Originally Posted by tom @ eas

I've been wanting to post a tech article about this subject for some time, might as well start now:

Absorbent Glass Matt Battery (AGM)

In contrast to conventional lead-calcium batteries, the sulfuric acid in an AGM battery is not held freely in the battery housing. The sulfuric acid is instead entirely bound into the mats of the glass-fiber fleece. For this reason , no acid can escape if the battery housing is damaged. In addition, the AGM battery is a sealed, airtight unit. This is possible because the gasses are converted back into water by the permeability of the separators.

Construction
AGM batteries differ from conventional lead-calcium batteries in the following points:

- Larger plates which allow a power density some 25% greater
- Glass-fiber-fleece separators which enable a cycle consistency up to 3x greater improving cold-starting ability, current consumption and service life
- Airtight housing with pressure relief valve
- Inspection plugs sealed and cannot be opened
- Acid bound in glass-fiber fleece

How AGM Batteries Work
AGM batteries differ from conventional lead-calcium batteries in their environmental compatibility and their retention of gases during charging. When a vehicle battery is charged, the electrolysis process emits the gases oxygen and hydrogen . In a conventional lead-calcium battery, these two gases are released into the atmosphere. In an AGM battery, the two gases are converted back into water: The oxygen created at the positive electrode during charging moves through the permeable glass-fiber fleece to the negative electrode, where it reacts with the hydrogen ions that are brought in with the electrolyte, to create water (oxygen cycle). In this manner, the gases, and thus the electrolyte, is not lost.

Only when the gas production is excessive, that is when too much pressure is generated (20 to 200 mbar), does the pressure-relief valve open, thereby allowing gas to escape while also preventing entry of atmospheric oxygen. Because the pressure in the battery is regulated by a valve, the AGM battery is also known as the VRLA battery (valve regulated lead acid).

Service Instructions for AGM Batteries
When handling AGM batteries, certain special factors must be taken into consideration with regard to battery renewal and installation location:

Do not charge AGM batteries with 14.8 volts or use use rapid charging programs
When charging batteries in the "stand alone" mode, the maximum charge voltage of 14.8 volts must not be exceeded. Even briefly charging an AGM battery with a charge voltage of more than 14.8 volts (voltages usually used in rapid charge programs) will damage the battery

Do not install AGM batteries in the engine compartment
Because of large temperature variations, AGM batteries must not be installed in the engine compartment. This would result in a significant reduction in the service life of the battery

Do not open AGM batteries
By no account should AGM batteries ever be opened, as oxygen from the atmosphere would cause the battery to lose its chemical balance and cause it to fail.

Battery Replacement
An AGM battery, when installed as original equipment, must always be replaced with an AGM battery. In special cases, where a customer's driving profile (e.g. short distance driving), results in a discharged battery, the AGM battery is a recommended replacement.

Note that replacement batteries resulting from a customer's driving profile cannot be claimed under warranty.

Battery Replacement Registration

This Service Function informs the PM that the battery has been replaced. It completes the following operations:

- Battery capacity is set to 80%
- Current Odometer reading are stored. The odometer readings at which the last seven battery replacements took place can be read off from the Diagnosis Requests of Control Unit Functions
- Stored battery statistics (current, voltage , battery charge level) are deleted
- Stored temperature statistics are deleted

Hope this helps.

[pbonsalb]

Yes, H8 AGM fits. The amps of each brand are close enough that it does not matter.

[anselmw]

Bringing this old post back where I had previously purchased an aftermarket battery. No issues with that choice but looks like FCP is now selling the Odyssey H8 battery for our cars. Has anyone tried it vs the options that are discussed in the post. I was thinking about giving it a try vs the autozone duralast AGM.

Would be good to know if anyone has tried it. My current car has had the original battery since Nov 2013. Still shows that it charges up fine but trying to think ahead as the battery doesn't usually last much longer than 8 years.

[anselmw]

Update. Bought the odyssey battery from fcp. Shipping was super quick. Installed today. Works perfectly. Some tips and confirmation. Carly still does not show the battery register the but bmwlogger does work.

[JPSurratt2005]

Originally Posted by anselmw

Update. Bought the odyssey battery from fcp. Shipping was super quick. Installed today. Works perfectly. Some tips and confirmation. Carly still does not show the battery register the but bmwlogger does work.

Are you saying you used bmwlogger to check registration or to verify that carly worked?

I registered with carly but it didnt show that anything had actually occured.

[anselmw]

Originally Posted by JPSurratt2005

Are you saying you used bmwlogger to check registration or to verify that carly worked?

I registered with carly but it didnt show that anything had actually occured.

Tried to register with Carly. It did not show changes to the battery info. The. I used bmwlogger to register. Reran the battery check info from Carly and everything has updated properly.


https://www.instagram.com/p/CTYybt7r...dium=copy_link

[Staszek]

Originally Posted by anselmw

Bringing this old post back where I had previously purchased an aftermarket battery. No issues with that choice but looks like FCP is now selling the Odyssey H8 battery for our cars. Has anyone tried it vs the options that are discussed in the post. I was thinking about giving it a try vs the autozone duralast AGM.

Would be good to know if anyone has tried it. My current car has had the original battery since Nov 2013. Still shows that it charges up fine but trying to think ahead as the battery doesn't usually last much longer than 8 years.

I was wondering about when to change my battery. I picked mine up in Aug 2013 and still on the original. I dont drive the car a ton it sits all winter on a trickle charger. Only 30k on it.

I was thinking do I do it preventively or wait for it to fail.

[anselmw]

Originally Posted by Staszek

I was wondering about when to change my battery. I picked mine up in Aug 2013 and still on the original. I dont drive the car a ton it sits all winter on a trickle charger. Only 30k on it.

I was thinking do I do it preventively or wait for it to fail.

My car has 40K miles. Sits on a charger as well. Since the new battery change, starting seems to be better even though i never had any issues on starting the car before. 8 years is a long time for a battery especially for one in modern BMW’s that are power hungry even when off.