fullymatted.
Back to search
Planet-9

Dead battery

Add to repair workspace
Open repair workspace
Original source
14 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHDead battery

Leading reported evidence

Replace covers

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

Hooked them up and replaced the covers.

Original post Read captured discussion
Dead battery
Read full discussion summary

Leading evidence: 'Replace covers' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace covers' (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 · 14 captured posts examined · 1 partial discussions

Compare 3 other evidence results

Use outlet

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 use the outlet for the cig lighter in the center.

Original post Read captured discussion
Dead battery

Run wire through the ring

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 have a friend who goes to the extent of running the wire through the ring on his key chain...

Original post Read captured discussion
Dead battery

Run wires

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

Now I have to decide where to run the wires.

Original post Read captured discussion
Dead battery

Suggestion

Now I have to decide where to run the wires.

Original post Read captured discussion
Dead battery
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.

Replace covers

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

Hooked them up and replaced the covers.

Original post Read captured discussion
Dead battery

Run wire through the ring

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 have a friend who goes to the extent of running the wire through the ring on his key chain...

Original post Read captured discussion
Dead battery

Run wires

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

Now I have to decide where to run the wires.

Original post Read captured discussion
Dead battery

Suggestion

Now I have to decide where to run the wires.

Original post Read captured discussion
Dead battery

Use outlet

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 use the outlet for the cig lighter in the center.

Original post Read captured discussion
Dead battery
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.

14 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: 20261026T150451Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

'08 Cayman. Left key in the ignition switch overnight. Battery dead as a rock. Why ?

POST 2Original post

When the key is in the ignition, a lot of stuff (computer, control modules, maybe radio amp) stay powered. Enough load to drain the battery overnight, apparently.

POST 3Original post

That is what I thought. Does this happen a lot ? First time in three years I have done this. Seems absurd, killing the battery this fast.

POST 4Original post

I've done this a few times to my 987 when it's on the lift.. Not good for you battery but as long as you don't do it too often it's not a big deal.

POST 5Original post

Read the FAQ. Documented in 2007. 1.7 amp draw http://www.planet-9.com/faq.php?faq=techdata#faq_batterysp

POST 6Original post

Thanks for the link. Exactly what I was looking for. I mostly wanted to be sure this was normal and not a problem with my particular car.

POST 7Original post

Dealing with a dead battery in a Cayman is a real pain. A trickle charger is a must, at least in the winter, if you're in an area that gets below 32 degrees. An inexpensive one works fine.

POST 8Original post

Well assuming overnight is about 12 hrs; 1.7A x 12 hrs = 20.4 AH. So if the battery went "dead" it was not in the best of shape in the first place. BTW the battery really does not go "dead". The battery voltage drops below the level where the electronics will function so they just go out so to speak. Old cars, without electronics, would turn over although slowly and might just fire. If not, one could just push them and dump the clutch to turn over the engine which would fire up. Now that is no longer possible. Anyway you can see that at 1.7A you only have so many hours before your 120AH - 150AH battery is drawn down.

POST 9Original post

Just bought one. Now I have to decide where to run the wires. Probably 16 hours, maybe more. Now I have an air bag light to turn off.

POST 10Original post

I got one of these along with the battery tender, and it works extremely well. I use the outlet for the cig lighter in the center. https://smile.amazon.com/Battery-Te...Q6VB49EZN6SDKRNM&pd_rd_w=vWOiX&pd_rd_wg=1JWgQ&psc=1&refRID=1064Q6VB49EZN6SDKRNM

POST 11Original post

Now I have to decide where to run the wires. From experience (not with this car - yet) - Get the cigarette lighter adapter, plug it into the center console and run the wire across the drivers seat (maybe even loop it through the steering wheel)... I have a friend who goes to the extent of running the wire through the ring on his key chain...

POST 12Original post

At the base of the windshield where the fender meets the corner of the hood there is a removable cover .It pops out easy. I took the battery cover off and the plastic trim next to it. I pushed the wires from the hole at the base of the windshield and over to the battery . Hooked them up and replaced the covers. Now I just have to pop the little cover and I can hook up a charger. Invisible, no drilling and easy. I may post up a pic later.

POST 13Original post

I hope to never need it. It is there just in case. I drive my car almost every day so the battery should stay up.

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