Battery?
Three Wheelin'
Joined: Aug 2017
Posts: 1,868
Likes: 549
From: Calgary, AB
Racer
Joined: Dec 2021
Posts: 417
Likes: 149
From: WI
Just swapped my battery out with an Interstate, didn't even need to reset the windows or anything.
I cringe to even ask...you didn't reverse polarity? I noticed my Interstate battery appears to sit backward on the tray in order to be positioned correctly, the labeling is upside down from the perspective of standing at the front of the car looking under the hood.
I cringe to even ask...you didn't reverse polarity? I noticed my Interstate battery appears to sit backward on the tray in order to be positioned correctly, the labeling is upside down from the perspective of standing at the front of the car looking under the hood.
Pro
Joined: Jun 2012
Posts: 534
Likes: 20
From: ATL
I recently swapped mine for one from Batteries Plus with the same capacity. My old one wasn't completely dead and I had no faults and didn't have to reset anything when I quickly swapped the batteries. Might have been without power for 3-4 minutes max.
Burning Brakes
Joined: Apr 2015
Posts: 1,018
Likes: 444
From: The 604
Check your cable connections to ensure they're very tight. I had warning for auto start/stop unavailable and after my dealer telling me I needed a Porsche battery (it was already there for a separate issue so I had them take a poke at it), I just tightened down the connections a little better and the warning went away.
Rennlist Member
Joined: Mar 2018
Posts: 242
Likes: 85
From: St. Louis
Went to get my 911 from one of my storage units and it was dead as a door nail. Portable jumper wouldn't get the car to start. Grabbed this battery from the local Napa store and connected it with jumper cables to the fuse box to pop the frunk. Installed the new battery and the car fired up immediately. No codes or errors outside of TPMS which registered as soon as I exceeded 15mph. This battery was approximately 1.5 inches wider, so I had to move the clamp into the next pre-drilled hole, but outside of that, a direct replacement. $200 and good as new.
Instructor
Joined: Dec 2011
Posts: 161
Likes: 102
From: Eugene, OR
Went to get my 911 from one of my storage units and it was dead as a door nail. Portable jumper wouldn't get the car to start. Grabbed this battery from the local Napa store and connected it with jumper cables to the fuse box to pop the frunk. Installed the new battery and the car fired up immediately. No codes or errors outside of TPMS which registered as soon as I exceeded 15mph. This battery was approximately 1.5 inches wider, so I had to move the clamp into the next pre-drilled hole, but outside of that, a direct replacement. $200 and good as new.
I doubt my car was w/o power for more than 90 seconds. I did not notice any memory loss, but I went ahead with the window closing routine just to be safe. I also registered the new battery using my iCarsoft POR v2.0. No issues or codes.
Thread Starter
2nd Gear
Joined: May 2022
Posts: 2
Likes: 0
I bought a 10 year old 911 with 9800 miles, had not been driven 25 miles since 2017. Dealer in Melbourne,Fl insisted a new Porsche battery was critical, i had just installed a new interstate, I relented, both the air bag module and rear control modules were sending errors. Took dealer 3 weeks to address the car as they are short staffed and underwhelming at best. I think all will function soon, thanks
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Three Wheelin'
Joined: Sep 2018
Posts: 1,495
Likes: 553
I bought a 10 year old 911 with 9800 miles, had not been driven 25 miles since 2017. Dealer in Melbourne,Fl insisted a new Porsche battery was critical, i had just installed a new interstate, I relented, both the air bag module and rear control modules were sending errors. Took dealer 3 weeks to address the car as they are short staffed and underwhelming at best. I think all will function soon, thanks