Battery age

PACarGuy · 10-11-2018, 07:26 PM

Anyone have a clue how to interpret the sticker on my battery (this is near the negative terminal) to determine its age? I'm not having any problems with the battery, but I don't see any record of it being replaced in the service history before I owned it, and if it's the original battery, then this thing is 6.5 years old now. And if so, I should probably start thinking about replacing it before winter. Any ideas?

UPSROD · 10-11-2018, 07:32 PM

Mine has a date stamped in the positive post.

PACarGuy · 10-11-2018, 07:34 PM

Quote:

Originally Posted by UPSROD

Mine has a date stamped in the positive post.

Hmm. Did you have to remove the big terminal connector to see it?

UPSROD · 10-11-2018, 07:48 PM

No, it is stamped on the top of it.

PACarGuy · 10-11-2018, 08:34 PM

Quote:

Originally Posted by UPSROD

No, it is stamped on the top of it.

Where would I be looking? I can't see the positive post under the connector block.

PACarGuy · 10-11-2018, 08:37 PM

Scratch that...looks like it was on the negative post. Appears to be 06 12, which I guess means 6th week of 2012, since the manufacture date of the car is March of 2012. So basically, this thing is over 6 1/2 years old!

I guess I should go ahead and replace it before winter.

deansbimmer · 10-12-2018, 06:26 AM

Yep, that's an old one for sure. Time to replace it.

PACarGuy · 10-12-2018, 08:16 AM

Quote:

Originally Posted by deansbimmer

Yep, that's an old one for sure. Time to replace it.

Will do. That's a pretty good run for a battery!

Just got a 25% coupon from Advance Auto also, bringing the cost of a new AGM battery to just over $150. Not too bad, and I already have the Carly app for battery registration.

UPSROD · 10-12-2018, 09:48 AM

Quote:

Originally Posted by PACarGuy

Scratch that...looks like it was on the negative post. Appears to be 06 12, which I guess means 6th week of 2012, since the manufacture date of the car is March of 2012. So basically, this thing is over 6 1/2 years old!

I guess I should go ahead and replace it before winter.

Sorry, didn't look, going from memory(or lack of) yes...the one to the rear of the car!

///M Power-Belgium · 10-12-2018, 10:11 AM

Quote:

Originally Posted by PACarGuy

Scratch that...looks like it was on the negative post. Appears to be 06 12, which I guess means 6th week of 2012, since the manufacture date of the car is March of 2012. So basically, this thing is over 6 1/2 years old!

I guess I should go ahead and replace it before winter.

No need to replace your battery with a CTEK battery tender .
# 4=>

https://www.m3post.com/forums/showth...6#post23837486

PACarGuy · 10-12-2018, 12:18 PM

Quote:

Originally Posted by ///M Power-Belgium

Quote:

Originally Posted by PACarGuy

Scratch that...looks like it was on the negative post. Appears to be 06 12, which I guess means 6th week of 2012, since the manufacture date of the car is March of 2012. So basically, this thing is over 6 1/2 years old!

I guess I should go ahead and replace it before winter.

No need to replace your battery with a CTEK battery tender .
# 4=>

https://www.m3post.com/forums/showth...6#post23837486

I do have a CTek, but isn't a 6.5 year old battery at end of life even with the CTek?

///M Power-Belgium · 10-12-2018, 12:46 PM

Quote:

Originally Posted by PACarGuy

I do have a CTek, but isn't a 6.5 year old battery at end of life even with the CTek?

Charge your battery with the CTEK a few weekends (at least 48 hours)
CTEK prolongs the lifetime of your battery ...
And if it still drains , a battery replacement is required .

Ximian · 10-12-2018, 11:46 PM

I have the CTEK MUS 4.3 Polar edition and it's fantastic. The Polar version has plastics that stay flexible in temperatures well below freezing so they don't crack or break in other ways. I keep my 2011 M3 with its original battery on it all winter long (plenty of -30/-34 F/C degree temps) and never have issues starting it in the spring or throughout the summer. Replace the battery when it fails.

roastbeef · 10-13-2018, 01:42 AM

time to drop some weight with a voltphreaks?

PACarGuy · 10-13-2018, 09:12 AM

Quote:

Originally Posted by roastbeef

time to drop some weight with a voltphreaks?

LOL. Thought you might suggest that. But damn...the pricing on those!!!

m235boy · 10-13-2018, 09:15 AM

Mine is stamped 17 /08 for a 2008, somehow it's still working fine

roastbeef · 10-13-2018, 09:28 AM

Quote:

Originally Posted by PACarGuy

Quote:

Originally Posted by roastbeef

time to drop some weight with a voltphreaks?

LOL. Thought you might suggest that. But damn...the pricing on those!!!

Price per pound, it's a great deal!

PACarGuy · 10-13-2018, 10:17 AM

Quote:

Originally Posted by m235boy

Mine is stamped 17 /08 for a 2008, somehow it's still working fine

Wow, that's impressive. But the Advance battery for $150 is a pretty good deal so proably worth the cheap insurance.

PACarGuy · 10-13-2018, 10:18 AM

Quote:

Originally Posted by roastbeef

Price per pound, it's a great deal!

Well, since I'm not all that concerned about lap times at this stage, I think I can probably better spend the money elsewhere <cough> track wheels + tires <cough>

roastbeef · 10-14-2018, 12:37 AM

Quote:

Originally Posted by PACarGuy

Well, since I'm not all that concerned about lap times at this stage, I think I can probably better spend the money elsewhere <cough> track wheels + tires <cough>

you're doing your mod math wrong sir. you got to figure its $400 for an oem battery and $1,100 for the voltphreaks. you're going to spend the $400 either way, so just spend $700 more and get the way better upgrade.

so you're really only "spending" $700.

PACarGuy · 10-14-2018, 08:07 AM

Quote:

Originally Posted by roastbeef

you're doing your mod math wrong sir. you got to figure its $400 for an oem battery and $1,100 for the voltphreaks. you're going to spend the $400 either way, so just spend $700 more and get the way better upgrade.

so you're really only "spending" $700.

LOL. Makes much more sense now. Thanks for helping me see it clearly!

GORDON.M3 · 10-15-2018, 11:05 PM

Quote:

Originally Posted by m235boy

Mine is stamped 17 /08 for a 2008, somehow it's still working fine

wait till winter comes...

10-11-2018, 07:26 PM	#1
PACarGuy Captain 667 Rep 966 Posts Drives: 2012 E92 M3 DCT ZCP Join Date: Nov 2015 Location: Philly burbs, PA iTrader: (1) Garage List 2012 E92 M3 [8.33] 2019 G01 X3 (wife's) [0.00]	Battery age Anyone have a clue how to interpret the sticker on my battery (this is near the negative terminal) to determine its age? I'm not having any problems with the battery, but I don't see any record of it being replaced in the service history before I owned it, and if it's the original battery, then this thing is 6.5 years old now. And if so, I should probably start thinking about replacing it before winter. Any ideas? Attached Images __________________ 2012 E92 M3 \| ZCP \| DCT \| Space Grey Metallic \| Black Novillo \| BE/ARP \| MPE V2 \| AA green filter \|BMW CF Rear Spoiler, RW Carbon Diffuser, CF Front Splitters \| DTEC 160W Angel Eyes
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10-11-2018, 07:32 PM	#2
UPSROD Lieutenant Colonel 946 Rep 1,931 Posts Drives: 2013 E92 M3 Join Date: Jul 2015 Location: Richland, Wa. iTrader: (2) Garage List 2013 BMW M3 [10.00]	Mine has a date stamped in the positive post.
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10-11-2018, 07:48 PM	#4
UPSROD Lieutenant Colonel 946 Rep 1,931 Posts Drives: 2013 E92 M3 Join Date: Jul 2015 Location: Richland, Wa. iTrader: (2) Garage List 2013 BMW M3 [10.00]	No, it is stamped on the top of it.
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10-11-2018, 08:37 PM	#6
PACarGuy Captain 667 Rep 966 Posts Drives: 2012 E92 M3 DCT ZCP Join Date: Nov 2015 Location: Philly burbs, PA iTrader: (1) Garage List 2012 E92 M3 [8.33] 2019 G01 X3 (wife's) [0.00]	Scratch that...looks like it was on the negative post. Appears to be 06 12, which I guess means 6th week of 2012, since the manufacture date of the car is March of 2012. So basically, this thing is over 6 1/2 years old! I guess I should go ahead and replace it before winter. Attached Images __________________ 2012 E92 M3 \| ZCP \| DCT \| Space Grey Metallic \| Black Novillo \| BE/ARP \| MPE V2 \| AA green filter \|BMW CF Rear Spoiler, RW Carbon Diffuser, CF Front Splitters \| DTEC 160W Angel Eyes Last edited by PACarGuy; 10-11-2018 at 09:05 PM..
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10-12-2018, 06:26 AM	#7
deansbimmer BimmerPost Supporting Vendor 3749 Rep 2,907 Posts Drives: 2011 E93 M3 Join Date: Nov 2014 Location: DFW, Texas iTrader: (17) Garage List 1988 BMW M3 [0.00] 2013 BMW M3 [0.00] 2011 X5M [0.00] 2011 BMW M3 [0.00]	Yep, that's an old one for sure. Time to replace it.
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10-12-2018, 11:46 PM	#13
Ximian . 1913 Rep 1,870 Posts Drives: E92 M3 Join Date: Oct 2016 Location: MN iTrader: (1) Garage List 2011 BMW M3 [0.00] 2021 BMW M3 [0.00]	I have the CTEK MUS 4.3 Polar edition and it's fantastic. The Polar version has plastics that stay flexible in temperatures well below freezing so they don't crack or break in other ways. I keep my 2011 M3 with its original battery on it all winter long (plenty of -30/-34 F/C degree temps) and never have issues starting it in the spring or throughout the summer. Replace the battery when it fails.
	Appreciate 2 ///M Power-Belgium63011.50 PACarGuy667.00 Quote

10-13-2018, 01:42 AM	#14
roastbeef Lieutenant General 11580 Rep 12,721 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	time to drop some weight with a voltphreaks? __________________ Instagram; @roastbeefmike
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10-13-2018, 09:15 AM	#16
m235boy Second Lieutenant 54 Rep 233 Posts Drives: M235 Join Date: Aug 2014 Location: Earth iTrader: (0)	Mine is stamped 17 /08 for a 2008, somehow it's still working fine
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