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Old 03-04-2019, 03:49 PM   #451
willzilla
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Member#: 490185
Join Date: Aug 2018
Location: TN
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2017 WRX Limited
Black

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Battery died on my 2017 WRX.. Replaced with an XS Power lightweight battery in a Mele design battery box/mount. Clears my PRL FMIC piping much better and looks great and zero issues with starting the car now even in the cold temps.
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Old 03-20-2019, 03:03 PM   #452
subawool
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'16 WRX owner. My battery started to have problem around 3 yrs/ 30k miles. Replaced with costco interstate (around $ 75) and so far so good.
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Old 03-22-2019, 12:15 PM   #453
IronmanDaremo
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And down goes Frazer!

Mine crapped out on Wednesday finally. Less than two years, 20k miles. Not even bothering with the frickin' factory warranty. Went to Autozone and got a Duralast Gold. 640 cca. And 5 year warranty.

Worst. Factory. Battery. Ever.

Now, really dumb question ....... do I need to reflash my map after I put it in? Or is it still in the system?
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Old 03-22-2019, 07:34 PM   #454
gathermewool
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Join Date: Mar 2007
Chapter/Region: NESIC
Location: New England
Vehicle:
14 FXTT (hers)
15 Legacy 2.5i Prem (his)

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5 years, 5 months and 67k miles and the OEM battery in our '14 FXT is still going strong.

My wife has switched to mostly short trips over the past year+, so I switched to charging it biweekly to monthly with a DC power supply.

I've topped it up with distilled water once since buying new. It was at the add level about two years ago.
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Old 03-23-2019, 02:34 PM   #455
Charlie-III
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Location: USA, North NJ, 07456
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1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

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Quote:
Originally Posted by IronmanDaremo View Post
And down goes Frazer!

Mine crapped out on Wednesday finally. Less than two years, 20k miles. Not even bothering with the frickin' factory warranty. Went to Autozone and got a Duralast Gold. 640 cca. And 5 year warranty.

Worst. Factory. Battery. Ever.

Now, really dumb question ....... do I need to reflash my map after I put it in? Or is it still in the system?
Nope......map is in "nonvolatile" memory which means......map is still there.....regardless of power lost or not.....
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Old 03-25-2019, 10:08 AM   #456
IronmanDaremo
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I got an 0606 code after putting in the new battery. So I reflashed it anyway with my map. Followed the Subaru tech fix and cleared the code (so far).
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Old 08-28-2019, 03:00 PM   #457
rayzorloo
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Default Weak battery

Hey folks, sorry late to the party from up here in Canada...but my battery on my 17 is showing signs of being very weak. So is this a warrantied item? I've read that some have bypassed the warranty and just bought aftermarket.

Thanks
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Old 08-28-2019, 03:08 PM   #458
noobultimatum
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2016 WRX
ALL THE STAGES

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Quote:
Originally Posted by rayzorloo View Post
Hey folks, sorry late to the party from up here in Canada...but my battery on my 17 is showing signs of being very weak. So is this a warrantied item? I've read that some have bypassed the warranty and just bought aftermarket.

Thanks
Yes, you can warranty it. It will be replaced by garbage again. I thought it was better to just buy a better one after i warrantied 2 times.
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Old 08-28-2019, 09:12 PM   #459
rayzorloo
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Quote:
Originally Posted by noobultimatum View Post
Yes, you can warranty it. It will be replaced by garbage again. I thought it was better to just buy a better one after i warrantied 2 times.
Good too know..thanks
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Old 08-28-2019, 11:04 PM   #460
2gnt2wrx
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Location: Dover, NH
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Mine's been in use since 2014, but we'll see how it is on startup having not started for 3 months. The factory one that was in my 06 sti lasted 7 years, but that was on a lower compression engine.
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Old 08-29-2019, 08:28 AM   #461
CGumina
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Quote:
Originally Posted by 2gnt2wrx View Post
Mine's been in use since 2014, but we'll see how it is on startup having not started for 3 months. The factory one that was in my 06 sti lasted 7 years, but that was on a lower compression engine.
Do yourself and the battery a favor: toss it on the charger for a few minutes before you try to start it.
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Old 08-29-2019, 06:37 PM   #462
2gnt2wrx
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Quote:
Originally Posted by CGumina View Post
Do yourself and the battery a favor: toss it on the charger for a few minutes before you try to start it.
I plan on it, I got a charger last year. Perfect opportunity to give it a shot.
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Old 09-19-2019, 03:57 PM   #463
RPW44
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FWIW, I bought a new battery for my 2015 WRX. Contacted Subaru of America, then submitted a PDF of my receipt from the new battery, then they mailed a check reimbursing the entire amount to my home. They couldnt have been nicer. I bought a much nicer Duracell battery with more CCA, cost was around $120. If anything Id wished Id gotten an Optima Yellow Top since they reimbursed me lol.
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Old 09-20-2019, 12:34 PM   #464
tramp
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Location: Knobbley Mountain
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33 months and 69K miles on the OEM battery and counting.
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Old 10-15-2019, 02:15 PM   #465
eemoneyy
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Location: Seattle, WA
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Ice Silver Metallic

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+1 joined the club of dead battery. 2017 WRX with 24K miles. Battery showed some signs of slow starts last winter but I chalked it up to cold temps. Last month it completely died on me after i took one 5 minute phone call via Buetooth with the engine off. Yesterday morning would not start.

I did a walk in express service and 2 hours later left with a Subaru branded battery 550 CCA free under warranty.

Of note I'm on a stage 2 Pro Tune (Cobb AP) and am not sure if my ECU has ever had the new dealer flash to fix the charging logic. If I do decide to have them flash does that overwrite my stage 2 tune MAP?
-E

Last edited by eemoneyy; 10-15-2019 at 02:40 PM.
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Old 10-15-2019, 03:19 PM   #466
idiosyncrisia
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Location: Essex County, New Jersey
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DGM

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Cobb put the new battery logic into their software last week, so hopefully tuners and OTS tunes are going to have the logic.
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Old 10-15-2019, 04:43 PM   #467
CGumina
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Location: Rochester, NY
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2015 WRX
Crystal White

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Quote:
Originally Posted by eemoneyy View Post
+1 joined the club of dead battery. 2017 WRX with 24K miles. Battery showed some signs of slow starts last winter but I chalked it up to cold temps. Last month it completely died on me after i took one 5 minute phone call via Buetooth with the engine off. Yesterday morning would not start.

I did a walk in express service and 2 hours later left with a Subaru branded battery 550 CCA free under warranty.

Of note I'm on a stage 2 Pro Tune (Cobb AP) and am not sure if my ECU has ever had the new dealer flash to fix the charging logic. If I do decide to have them flash does that overwrite my stage 2 tune MAP?
-E
If you're already tuned, don't waste your time. Any aftermarket map you apply will not contain the charging logic update that's buried.
Quote:
Originally Posted by idiosyncrisia View Post
Cobb put the new battery logic into their software last week, so hopefully tuners and OTS tunes are going to have the logic.
Spoiler alert: I don't see any updates for the 2015 cars.
Quote:
Revision Notes:

v303 –

2018 ADM WRX: Fixed bug where the "Intake Temperature Pre-Turbo" monitor could sometimes show a value of -58F for a brief period of time after engine start. ECU did not use the erroneous value so this is a monitor issue only.

Added 2019 ADM WRX support.

v302 –

2017 USDM WRX CVT/MT: Fixed an issue where real-time tuning and real-time map switching was disabled for the "MAF Calibration" table which caused the ECU to always use the reflashed values only for this table.

Note: Please REFLASH a v302 map to address this.

v301 –

Fixed bugs associated with v300 maps preventing real-time and launch control feature changes from working.

Addressed issue causing check engine light from being thrown for Stage2 maps

v300 –

Supports latest Subaru ECU revision. Merged Subaru calibration for latest injector timing changes.



v201 –

Fixed bug causing Realtime map switching to not work.

Added 2016 USDM WRX 6MT support.

Added COBB BigSF Intake support.


v200 –

Realtime tuning/map change feature added to v200 and later OTS maps (also requires latest Accessport firmware update to expose real-time map change function).

Launch control (AP and cruise control adjustable) feature added to v200 and later OTS maps (also requires latest Accessport firmware update to expose launch RPM adjustment menu).

Flat foot shifting (AP adjustable) feature added to v200 and later OTS maps (also requires latest Accessport firmware update to expose flat-foot shift RPM adjustment menu).

Merged Subaru calibration update for injector timing and other changes.

Includes Subaru pre-ignition updates.
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Old 10-15-2019, 08:03 PM   #468
IndecisiveS12
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2017 WRX Sport
World Rally Blue

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Quote:
Originally Posted by CGumina View Post
If you're already tuned, don't waste your time. Any aftermarket map you apply will not contain the charging logic update that's buried.

Spoiler alert: I don't see any updates for the 2015 cars.
in the release notes for the Cobb Custom Features V2 it lists the new battery charging logic.

https://cobbtuning.atlassian.net/wik...therOEMUpdates

So i'm guessing that this ECU type is something that protuners will be able to select when they create a new base map for a customer.
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Old 10-16-2019, 10:15 AM   #469
CGumina
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Location: Rochester, NY
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2015 WRX
Crystal White

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Quote:
Originally Posted by IndecisiveS12 View Post
in the release notes for the Cobb Custom Features V2 it lists the new battery charging logic.

https://cobbtuning.atlassian.net/wik...therOEMUpdates

So i'm guessing that this ECU type is something that protuners will be able to select when they create a new base map for a customer.
Interesting... the downside is, if you're e-tuning, typically you start with an "OTS" tune, mail that off, and that's what they modify. That means all of the OTS tunes that are present are still going to have the old charging logic.

If it was a "fresh start" and your tuner was using the Gen2 version of AccessTuner to send you a basemap, though... that would be much better.
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