5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBattery Charger
Leading reported evidence
Use on the cup car
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed
I've had the 996TT (5K miles) stored for 16 months (long story), no problems with battery and the other is used on the Cup car.
Leading evidence: 'Use on the cup car' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean oil/filter)' (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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Suggestion
Change oil/filter right before storage (ALWAYS store with clean oil/filter)
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.
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Suggestion
Fill gas tank to the top (minimize volume for moisture condensation)
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
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion
Change oil/filter right before storage (ALWAYS store with clean oil/filter)
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
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion
I have been using the battery maintainer from Walmart...
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.
Rennlist: 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: 20261026T181445Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I know it's the first day of summer, and thus, early to raise this question (again). I plan to use my '04 C4S very sparingly in the Philadelphia winter, if at all. Although it's an '04, I have less than 1500 miles on the car. Yeah, I'll be driving it more this summer. Anyway, what battery tender/charger is most recommended to keep up my battery's charge? Do you keep it connected all winter, or just every couple of weeks (for several days) to up the charge? I had bought a "Battery Tender" for a vintage e-type I had and the battery routinely boiled over. Obviously something I want to avoid with the Porsche.
Appreciate your comments! And yes, I've reached 130 posts - time to formally join - which I'll do once I get some good pics!
Phil
'04 C4S Coupe/Atlas/Black/6sp
Consider the Deltran Battery Tender - it's a "battery conditioner" which just means it keeps the battery topped off without "cooking" it as a regular trickle charger can.
I've got 2 of the Porsche Tequipment maintainers:
http://e-partssales.com/Merchant2/me...Code=POTE996CC
Plug into the cigarette lighter and forget about it. I've had the 996TT (5K miles) stored for 16 months (long story), no problems with battery and the other is used on the Cup car. No risk of battery overcharge/damage/etc.
The other solid state battery maintainers (Deltan, Yuasa, Schumacher, Griots) are all essentially the same electronics and will not overcharge/boil a battery.
There have been many posts discussing winter storage in various forums, but for non driveable storage, in brief:
1. Change oil/filter right before storage (ALWAYS store with clean oil/filter)
2. Fill gas tank to the top (minimize volume for moisture condensation)
3. Overinflate tires and/or use Tire Cradles
4. Wash/Wax/Condition rubber seals, wiper blades, etc/Vacuum/Car cover
5. Battery maintainer
It is generally not recommended to start the car and let it idle/warm up, as you are just building condensation in the engine/exhaust. If you start the car, drive it for 15-20 minutes until everything is up to normal operating temperature, then put it back into storage (driveable storage).
A genuine battery tender can be plugged all the time. It's around $60.
I have a Schmacher (i think that's the brand), which sits next to the battery and has a 3 prong plug that cann be plugged into the wall. Does anyone know if this can be plugged into the wall all the time when not driven?
I have been using the battery maintainer from Walmart... $24? it clips right now to the battery and does the job well. If you want to get fancy they come with an extra connector so you can mount them to the terminal.
This is a source reference. Confirm exact model applicability in the original material.
