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battery replacement on 2011 Cayman

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5 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

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YOUR RESEARCHbattery replacement on 2011 Cayman

Leading reported evidence

Use walmart and interstate batteries

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Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed
Lots of people have used Walmart and Interstate batteries.
Original post Read captured discussion
battery replacement on 2011 Cayman

Frequently discussed work

Replace battery

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
How do I change the battery on my 2011
Original post Read captured discussion
battery replacement on 2011 Cayman

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Leading evidence: 'Use walmart and interstate batteries' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace battery' (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.

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1 matching discussions · 5 captured posts examined · 1 partial discussions

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Replace battery

Suggestion or failed attempt

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Unsuccessful attempts: 1
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Suggestion
How do I change the battery on my 2011
Original post Read captured discussion
battery replacement on 2011 Cayman

Use charger/maintainer while you swap

Suggestion or failed attempt

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
I'm pretty sure you don't need a code, but you can hook up a small 12V battery or use a charger/maintainer while you swap to save your radio presets.
Original post Read captured discussion
battery replacement on 2011 Cayman

Use cteck 3.8

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Suggestion
NB: I am now using a CTECK 3.8 to keep the battery in top condition whilst I am not driving.
Original post Read captured discussion
battery replacement on 2011 Cayman

Frequently discussed actions (4)

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Replace battery

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
How do I change the battery on my 2011
Original post Read captured discussion
battery replacement on 2011 Cayman

Use charger/maintainer while you swap

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
I'm pretty sure you don't need a code, but you can hook up a small 12V battery or use a charger/maintainer while you swap to save your radio presets.
Original post Read captured discussion
battery replacement on 2011 Cayman

Use cteck 3.8

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
NB: I am now using a CTECK 3.8 to keep the battery in top condition whilst I am not driving.
Original post Read captured discussion
battery replacement on 2011 Cayman

Use walmart and interstate batteries

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
Lots of people have used Walmart and Interstate batteries.
Original post Read captured discussion
battery replacement on 2011 Cayman

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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.

5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Planet-9: 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: 20261027T033922Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

How do I change the battery on my 2011 Cayman ? Are there any tricks? Do I need a radio code. What is a good rrplacement battery?

POST 2Original post

I'm pretty sure you don't need a code, but you can hook up a small 12V battery or use a charger/maintainer while you swap to save your radio presets. Lots of people have used Walmart and Interstate batteries. I was about to get the Bosch one from Pepboys but they covered mine under warranty. Don't forget to hook up the vent tube.

POST 3Original post

I have just done this on my 2009 so should be the same... Biggest issue I had was physically lifting it out - ended up pretty much standing in the fronk! Once the new battery is in (Bosch S5 110 is a direct size replacement btw) make sure you hook up both the vent tube (clear tube on right of battery as viewed from front of car, and plug the vent on the left of the battery with the plug which can be twisted off the battery terminal cover). I did not bother with a second battery to keep charge on. Sat nav kept all its memory but the car threw some errors when I first started it up again ( PASM , PSM and maybe one more). These all went away within minutes of the first drive - I believe it is just systems re-initialising. Overall, quite painless. NB: I am now using a CTECK 3.8 to keep the battery in top condition whilst I am not driving. Took 2 mins to bolt on some tails whilst the battery was out so it just clips on now. /R

POST 4Original post

Just did a battery replacement on my '08 S. Confirming rakh1's notes above, plus my own experience: Nothing unusual as far as the removal and install, except that, as noted, you will need to stand in the frunk to lift the battery out/in. No radio code needed - my trip odometer reset to zero, and I got a 'PSM failure' warning for a minute, after which it cleared. No other faults. Three companies (Exide, Johnson Controls, and one other whose name I have forgotten) make all the batteries offered in the US market, so where you buy it is really down to convenience and what brand name is stuck on the top. An AGM (absorbent glass mat) battery from one of the 'bigs' (Sears, AutoZone, etc.) should be $170-180, vs. the $380 or so that Porsche charges for the OEM version. Bottom line - an easy swap. In my case, I did it because the original was five years old - it was still holding 12.3 volts, but since the car is my daily (and only) driver, better safe than sorry...

POST 5Original post

One more point. You are correct about the short list of manufacturers but warranties differ among brands from 1 to 3 years for free replacement as do prices. I suggest you shop around.

This is a source reference. Confirm exact model applicability in the original material.