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Planet-9

987.1 Boxter battery dead - Help!

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5 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH987.1 Boxter battery dead - Help!

Leading reported evidence

Check ) and they have a higher crank output

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

They are basically made from the same manufacture which is Johnson controls (last I checked) and they have a higher crank output.

987.1 Boxter battery dead - Help!
Read full discussion summary

Leading evidence: 'Check ) and they have a higher crank output' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check ) and they have a higher crank output' (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.

Read captured replies

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

Compare 3 other evidence results

Recommend interstate

Suggestion or failed attempt

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 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 would highly recommend Interstate.

987.1 Boxter battery dead - Help!

Replace battery

Suggestion or failed attempt

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 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

If jump-starting doesn't work, is the only option to replace the battery?

987.1 Boxter battery dead - Help!

Use moll battery

Suggestion or failed attempt

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 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

If you are using the moll battery that is made for the cayman I would suggest replacing it with a non-porsche stamp battery.

987.1 Boxter battery dead - Help!
Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check ) and they have a higher crank output

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

They are basically made from the same manufacture which is Johnson controls (last I checked) and they have a higher crank output.

987.1 Boxter battery dead - Help!

Recommend interstate

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 would highly recommend Interstate.

987.1 Boxter battery dead - Help!

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

If jump-starting doesn't work, is the only option to replace the battery?

987.1 Boxter battery dead - Help!

Use moll 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

If you are using the moll battery that is made for the cayman I would suggest replacing it with a non-porsche stamp battery.

987.1 Boxter battery dead - Help!
Coverage and how to read this overview

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: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hey guys, I left my 987.1 sitting without a battery tender for a month, and it seems that the battery has gone completely dead. My key is stuck in the ignition. I plan on doing the following things, and I'm looking for your advice and experience for guidance: 1. Charging the car through the cigarette lighter enough to pop the hood. Will this kind of item from Amazon work ? If not where can I get something that would work for this purpose? ( Amazon.com: Questions and Answers: Black & Decker BM3B 6V and 12V Battery Charger / Maintainer forum ) 2. Jump starting the car then leaving it on a battery tender. If jump-starting doesn't work, is the only option to replace the battery?

POST 2Original post

Look in your owner's manual. There is a post inside the fuse box where you can connect the jumper cable to give you enough power to pop the frunk lid. Then you can jump the car. A battery tender (pretty much any of them) will probably also work to charge the battery through the cig lighter, if the battery has any capacity at all. Are you on the original battery? If so, it is probably toast. Plan on getting a new battery. I would highly recommend Interstate.

POST 3Original post

Indiosyncrasies Its all there. there are many, many threads on this. Please do a search.

POST 4Original post

Excellent! Just came back from a holiday excursion for eight days and the Cayman just sat locked up in the garage during that time. On returning went out to take a ride, hit the remote and nothing. Thought the battery was dead but the "Remote Control Key" tip to open door with the key, leave door closed and then press button 1 worked. This got me in and it started right up. Thanks!

POST 5Original post

If you are using the moll battery that is made for the cayman I would suggest replacing it with a non-porsche stamp battery. Interstate and wal-mart (of all places) makes one that fits the cayman. They are basically made from the same manufacture which is Johnson controls (last I checked) and they have a higher crank output. I have been using the one from wal-mart for over a year without issues after leaving my car for more than a week in ~30 degree weather. The moll battery constantly needed the re-charger and would struggle to start at times. I have not had to recharge my battery nor had any issues at all. In my opinion get ride of the moll battery once it starts giving you trouble and never look back.

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