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2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums General 5-Series Sedan and Wagon (F10 / F11) Forum Replace the Battery
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      01-10-2019, 07:27 AM   #1
mrmarie
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Replace the Battery

Hello,

I will change my 2011 F10 battery (90 Amp) with new one, what will be better for replacement
-Bosch (100 Amp)
-Bosch (88 Amp)
-Varta (100 Amp)

it will be better go with higher or lower Amp?

Appreciate your help

Thanks
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      01-10-2019, 01:36 PM   #2
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Not sure why you're asking this on a 5 series forum (based on the car info listed along the left side of the page)...if your car is heavily optioned with electronics and you have auto start/stop...I would recommend the higher AH (amp hour) battery.

Don't forget you'll not only need to register the new battery...but also recode for a battery that has a higher AH rating than what came out of the vehicle. If you don't do this...it will probably lessen the life of your new battery.

Good luck. Here's some links that explain why you need to register new batteries:
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      01-10-2019, 09:13 PM   #3
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Dude just get OEM battery and make sure its registered
unless you like endless headache and issues with shit not working
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      01-10-2019, 10:54 PM   #4
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I'd (and did) go with the higher Ah battery.
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      01-11-2019, 05:34 AM   #5
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Thank you for your reply

Iam now have F10

If i replace it with lower AH it also need to recode?

Thank again

Quote:
Originally Posted by Qsilver7 View Post
Not sure why you're asking this on a 5 series forum (based on the car info listed along the left side of the page)...if your car is heavily optioned with electronics and you have auto start/stop...I would recommend the higher AH (amp hour) battery.

Don't forget you'll not only need to register the new battery...but also recode for a battery that has a higher AH rating than what came out of the vehicle. If you don't do this...it will probably lessen the life of your new battery.

Good luck. Here's some links that explain why you need to register new batteries:
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      01-11-2019, 11:43 AM   #6
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Yes. The coding needs to be changed so that the DME will accommodate the charging of a lesser amp hour battery. If any parameters of the battery changes...then the charging system needs to be recoded so that the system will adjust accordingly to those changes.
  1. Register ALL new battery replacements.
  2. Recode parameters if the battery specs change

Here's a link to a very comprehensive thread that goes into details about registering/coding BMW batteries: https://www.e90post.com/forums/showthread.php?t=1338302
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      01-11-2019, 02:42 PM   #7
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Quote:
Originally Posted by Qsilver7 View Post
Yes. The coding needs to be changed so that the DME will accommodate the charging of a lesser amp hour battery. If any parameters of the battery changes...then the charging system needs to be recoded so that the system will adjust accordingly to those changes.
  1. Register ALL new battery replacements.
  2. Recode parameters if the battery specs change

Here's a link to a very comprehensive thread that goes into details about registering/coding BMW batteries: https://www.e90post.com/forums/showthread.php?t=1338302
^^^ I second the above. Actually, the IBS needs to know how much energy to expect the battery to have so that it knows how to manage the state-of-charge and ensuring that loads while parked don't drain the battery so far that it won't start.
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      01-11-2019, 05:04 PM   #8
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At 49,000 miles and 3.5 years the dealer, under warranty, replaced my battery. Its a diesel so it probably uses more battery power but I don't use the start/stop function much at all.
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      01-12-2019, 09:56 PM   #9
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https://f10.5post.com/forums/showthread.php?t=1490696

Just replace it with the same capacity as the original battery. It was sufficient out of the factory, it is sufficient now, unless you have added a whole bunch of accessories that drain on the battery.
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      01-13-2019, 03:24 AM   #10
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My current battery OEM 90Ah 900A (EN) - 900CCA -160 RC (SAE)
will replace it with one non-AGM of the below option:
-Varta 88Ah 640A (EN) -700CCA (SAE)
-ACDelco 88Ah - 600CCA
-Bosch S5 100Ah 830A (EN)

Thank you
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      01-14-2019, 08:01 AM   #11
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I see that no coding for battery 100Ah, only 80ah ,90ah, 110ah
is that right?
so its better to go with 88Ah?

Appreciate your feedback

Thanks
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      01-14-2019, 09:55 AM   #12
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Quote:
Originally Posted by mrmarie View Post
My current battery OEM 90Ah 900A (EN) - 900CCA -160 RC (SAE)
will replace it with one non-AGM of the below option:
-Varta 88Ah 640A (EN) -700CCA (SAE)
-ACDelco 88Ah - 600CCA
-Bosch S5 100Ah 830A (EN)

Thank you
Not using AGM ?
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      01-14-2019, 10:29 AM   #13
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Quote:
Originally Posted by mrmarie View Post
My current battery OEM 90Ah 900A (EN) - 900CCA -160 RC (SAE)
will replace it with one non-AGM of the below option:
-Varta 88Ah 640A (EN) -700CCA (SAE)
-ACDelco 88Ah - 600CCA
-Bosch S5 100Ah 830A (EN)


Thank you
Quote:
Originally Posted by mrmarie View Post
I see that no coding for battery 100Ah, only 80ah ,90ah, 110ah
is that right?
so its better to go with 88Ah?

Appreciate your feedback

Thanks
In my opinion...not using an AGM battery is not a wise decision...and going with an underpowered battery (less than original) is also not a good idea.

My feed back is that you're not making a wise decision. You may be saving a few dollars buying the underpowered wet-cell battery...but based on the electronic consumption of your BMW...an AGM battery and one with higher AH rating is what you should select.

You didn't give us your model (not that I remember) nor your location...so we can't make any judgements as to what type of weather (extreme cold or extreme heat) you'll be encountering. But you should be looking for a 49/H8 AGM or 94R/H7 AGM battery class size.

See the chart below for battery specs in regards to battery class sizes. Unless you are in a really remote location...you should be able to find a 49/H8 or 94R/H7 AGM battery at your local auto part stores (AutoZone/Advanced Auto/Pep Boys/O'Reilly's/etc)...or even your local Walmart/Sam's Club/Costco. I believe my local Sam's club sells a Duracell 49/H8 AGM battery for around $180:



(these pics were from 2015 @ Sam's Club...prices have gone up a bit)



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Last edited by Qsilver7; 01-14-2019 at 10:46 AM.
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      01-14-2019, 10:53 AM   #14
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Why you should replace with an AGM battery:
  1. https://www.newtis.info/tisv2/a/en/f...ery/1VnXul77eD
  2. https://www.newtis.info/tisv2/a/en/f...ttery/1LiMpr2r



Introduction

In September 2002, the first so-called VRLA batteries, better known as AGM batteries came into use. (VRLA stands for Valve Regulated Lead Acid, i.e. lead-acid battery with pressure relief valve; AGM stands for Absorbent Glass Mat, i.e. absorbent glass-fibre fleece).

The constantly increasing energy demand of modern vehicle electrical systems calls for ever more powerful battery solutions. A modern luxury-class vehicle has some 100 actuator motors that have to be fed with electrical current. Added to these are safety, environmental and comfort elements which are increasingly becoming standard features, such as e.g. Antilock Brake System (ABS), Dynamic Stability Control (DSC), steering assistance (EPS), electronic chassis and suspension control, air conditioning and navigation system. Current consumption is considerable even when the vehicle is not in use.

The somewhat higher price compared with a battery of similar size is fully balanced by the following benefits:
  • greatly longer service life
  • improved starting reliability at low temperatures
  • reliable starting of engines with high starting current requirements, e.g. high-performance diesel engines
  • 100 % freedom from maintenance
  • low risk in the event of an accident (reduced environmental risk)
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      01-14-2019, 01:07 PM   #15
mrmarie
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Quote:
Originally Posted by Qsilver7 View Post
In my opinion...not using an AGM battery is not a wise decision...and going with an underpowered battery (less than original) is also not a good idea.

My feed back is that you're not making a wise decision. You may be saving a few dollars buying the underpowered wet-cell battery...but based on the electronic consumption of your BMW...an AGM battery and one with higher AH rating is what you should select.

You didn't give us your model (not that I remember) nor your location...so we can't make any judgements as to what type of weather (extreme cold or extreme heat) you'll be encountering. But you should be looking for a 49/H8 AGM or 94R/H7 AGM battery class size.

See the chart below for battery specs in regards to battery class sizes. Unless you are in a really remote location...you should be able to find a 49/H8 or 94R/H7 AGM battery at your local auto part stores (AutoZone/Advanced Auto/Pep Boys/O'Reilly's/etc)...or even your local Walmart/Sam's Club/Costco. I believe my local Sam's club sells a Duracell 49/H8 AGM battery for around $180:



(these pics were from 2015 @ Sam's Club...prices have gone up a bit)



Really appreciate your help
I own F10 2011 523i and here is my current AGM battery



and will replace it with non-AGM battery and only have the below options:-
-Bosch s5 100ah



-Varta 100ah



-Varta 88ah

so If i go with S5 Bosch 100Ah it will be ok as my current one is 90Ah?

Thank you again

Last edited by mrmarie; 01-15-2019 at 01:35 AM.
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      01-15-2019, 01:24 AM   #16
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You have a 532i?
You didn't state where you are but the point is,
Match or better the specs, don't go below.
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      01-15-2019, 01:36 AM   #17
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Quote:
Originally Posted by wcr3d View Post
You have a 532i?
You didn't state where you are but the point is,
Match or better the specs, don't go below.
I'm sorry its 523i

Egypt
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      01-15-2019, 09:44 AM   #18
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If you go non-AGM, where are you going to vent the gases from the battery? On cars that came with AGM batteries there is no battery vent system to take hydrogen (from charging) and other battery gases out of the cabin.
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      01-15-2019, 11:46 AM   #19
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Quote:
Originally Posted by mrmarie View Post
I'm sorry its 523i

Egypt
Ah...thanks for this info...it does help paint a better picture.

But as Surly73 mentions about venting the battery...if yours is located in the trunk (enclosed)...then you will need to vent the battery. Check to see if your car has a vent tube and a little black elbow that connects the tube to the battery.

Since you have a model that isn't sold in the USA market...is the battery in the engine bay? If it is...then there's enough air circulation to move any gases expelled by the battery away. But if it is enclosed in the trunk...then it needs to be vented.

The 1st pic below is a pic of the vent tube from an e38 7 series...but every BMW I've owned where the battery was installed either below the rear seat or in the trunk...has had the same vent tube set-up:



{vent tube hooked up to battery in my e53 X5 on left side in pic below}


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      01-15-2019, 09:55 PM   #20
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Quote:
Originally Posted by Surly73 View Post
If you go non-AGM, where are you going to vent the gases from the battery? On cars that came with AGM batteries there is no battery vent system to take hydrogen (from charging) and other battery gases out of the cabin.
AGM's also vent. ALL batteries vent, at least some. IIRC, the stock AGM battery has a vent tube.
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      01-16-2019, 06:32 AM   #21
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Thank you all, Really appreciate your help

Finally i get non-AGM Bosch S5 100Ah
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      01-16-2019, 07:03 AM   #22
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For the registration the OEM batteries are 80Ah, 90Ah, and 110Ah only
So its better to code non-AGM 100Ah as 90Ah or 110Ah?

Thanks
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