16 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBattery replacement
Leading reported evidence
Disconnect battery in my '09 997.2 c2s
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I was pleasantly surprised to find that when I disconnected my battery in my '09 997.2 C2S to replace all four door speakers, I didn't have to reset the radio memory with my preferred stations, nor did I have to "retrain" the windows.
Leading evidence: 'Disconnect battery in my '09 997.2 c2s' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'steering & throttle also' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Disconnect battery in my '09 997.2 c2s' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I had the battery disconnected twice -- once for four days for the driver's side speakers, and the second time just for a day for the passenger side speakers.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
And remember, the factory fitted Banner AGM is a quality battery; mine is going into its 9th year this summer.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
Connecting my charger/maintainer while the battery was disconnected is how I changed my battery.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I recently changed the battery in my 02 Boxster S .
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Disconnect battery in my '09 997.2 c2s
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I was pleasantly surprised to find that when I disconnected my battery in my '09 997.2 C2S to replace all four door speakers, I didn't have to reset the radio memory with my preferred stations, nor did I have to "retrain" the windows.
Disconnect i believe, and there have been no further notifications
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
The only thing I noticed was a notification that PSM (or maybe it was PASM?) had failed, but that was just a result of the battery being disconnected, I believe, and there have been no further notifications.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I had the battery disconnected twice -- once for four days for the driver's side speakers, and the second time just for a day for the passenger side speakers.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
I was pleasantly surprised to find that when I disconnected my battery in my '09 997.2 C2S to replace all four door speakers, I didn't have to reset the radio memory with my preferred stations, nor did I have to "retrain" the windows.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
16 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Pelican Parts: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T165639Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hint: watch this video for tips. Do not attempt to lift the battery over the fender and drop into place. Put the battery on the floor of the front trunk, step into the front trunk and pick up battery and instal. See video:
https://www.youtube.com/watch?v=gwybkvfA3YA
The battery tray will accept the longer, optional battery. Same CCA's I believe, but slightly more capacity. The dealer will tell you some story about only trained techs can do this, but as said above it's a simple in/out. On the first start I think the computer might require about five minutes of idle time to re-learn whatever it is they do for the car, but mostly it seems to stabilize the idle. Be advised the door/hood/engine cover locks don't work w/o a battery. Probably the steering & throttle also.
When a battery needs to be changed on a 996 ,
Windows must be closed , wheels in line................if not , the wheel angle sensor can necessite a re-calibration , and the windows must be opened and closed to re-learn the position.
So , it's recommended to add a battery charger during the operation , in the goal of not cutting the 12v.
Hi I keep a Cetec battery maintainer on my 996 battery when not in use. Can I keep my maintainer attached to the terminals when I disconnect the old battery terminals?
- When the new battery is installed and secured, I can remove the maintainer and there will be no
electronic issues? Are there any precautions I should be careful with when doing this?
Thanks Jim Russo
Connecting my charger/maintainer while the battery was disconnected is how I changed my battery. I've had no issues that I am aware of.
Other precautions:
Standing in the trunk while lifting and pivoting with a 50 pound weight on your back can be physically demanding, but it is the only way to do it. Be aware of the physics involved and plan how you will lift, rotate and lower the battery. I lifted the battery up and paused with it on top of the spare tire; then lifted, rotated and lowered it into the bottom of the trunk. Then I stepped out of the trunk and lifted the battery up and out. Installed the new one by reversing the steps.
For those of us who don't lift weights, this is a great way to pull a back muscle or pop a disk, so do it carefully.
I was pleasantly surprised to find that when I disconnected my battery in my '09 997.2 C2S to replace all four door speakers, I didn't have to reset the radio memory with my preferred stations, nor did I have to "retrain" the windows. I had the battery disconnected twice -- once for four days for the driver's side speakers, and the second time just for a day for the passenger side speakers. The only thing I noticed was a notification that PSM (or maybe it was PASM?) had failed, but that was just a result of the battery being disconnected, I believe, and there have been no further notifications.
I would imagine that for the OP's 991.1 car, the situation would be similar.
Good one, but we should really talk about beers.
And remember, the factory fitted Banner AGM is a quality battery; mine is going into its 9th year this summer. Do the math: May 2015.
I hope he didn't buy a Lithium battery based on many of the false claims made by those in sales and users with no background in batteries.
Now how people spend their money is their business, but the one thing I can't stand are the "claims" made that make absolutely no sense.
So I had some fun on a gloomy day...
Lithium Batteries
I recently changed the battery in my 02 Boxster S . After the change my car had a high idle speed of 1400 . I read online about resetting the egas . Basically you turn the key to run ( don't start the engine ) and leave it on for one minute . Do NOT touch the gas pedal during this procedure.
This procedure fixed my high idle . Not sure if this is a random occurrence or if my car is especially sensitive ? Oddly enough my windows didn't need to be retrained .
This is a source reference. Confirm exact model applicability in the original material.
