Battery Issues
Pro
Joined: Jul 2006
Posts: 558
Likes: 8
From: Northern New Jersey
I recently had what I thought was a weak battery. I replaced it but then the new one started to get weak. Had it check out at the dealer and turns out the alternator was not up to spec. and was not producing the required voltage to keep the battery charged. It was replaced under CPO warranty (approx. $1000 repair). SO glad i have CPO!
Drifting
Joined: Dec 2009
Posts: 3,035
Likes: 15
Current draw is 25mA. Car can stay parked up to five weeks according to Porsche service bulletin (3 weeks when cold, fewer when battery is not perfectly healthy).
Advanced
Joined: Nov 2004
Posts: 83
Likes: 0
From: SoCal
I recently had what I thought was a weak battery. I replaced it but then the new one started to get weak. Had it check out at the dealer and turns out the alternator was not up to spec. and was not producing the required voltage to keep the battery charged. It was replaced under CPO warranty (approx. $1000 repair). SO glad i have CPO!
Most likely is the alternator problem. When alternator has problem, it will not re-charge the battery.
Burning Brakes
Joined: Feb 2009
Posts: 882
Likes: 8
From: So.FLa/MA
Rennlist Stories
The Best Porsche Posts for Porsche Enthusiasts
Theon Goes Full Carbon Fiber With Stunning New Build
Verdad Gallardo
Genius Porsche-Themed Gifts That'll Make Any Dad or Grad Smile
Joe Kucinski
10 Used Porsches Are Selling for Way Too Cheap
Joe Kucinski
Tuner Is Converting Porsche 911s Into Shooting Brakes
Verdad Gallardo
This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917
Verdad Gallardo
Is This Convertible Cayenne A Steal, Or A Returnless Investment?
Verdad Gallardo
10 Best Non-Flat Six Porsches You Can Buy For Under $100K
Joe Kucinski
Porsche's Top 5 Most Questionable Naming Decisions
Verdad Gallardo
Pogea Racing's 964 Porsche 911 Reimagination Stands Out in a Crowded Field
Verdad Gallardo
Pro
Joined: Jul 2006
Posts: 558
Likes: 8
From: Northern New Jersey
Do you leave the car locked (alarm set) while the maintainer is plugged in?
Reason i ask is that i have had the alarm go off (for no obvious reason) in my garage while on the maintainer. Dealer said no faults registered.
I wonder if it is a voltage fluctuation thing when the maintainer kicks on/off.
Any one else experience this?
Reason i ask is that i have had the alarm go off (for no obvious reason) in my garage while on the maintainer. Dealer said no faults registered.
I wonder if it is a voltage fluctuation thing when the maintainer kicks on/off.
Any one else experience this?
Race Car
Joined: Mar 2005
Posts: 4,019
Likes: 1
......
When I first turn the key, I turn it to just short of cranking, so that I can read my oil level (997.1 engine, obviously) but during that 6 second wait I press the SPORT button. When I then go to crank the engine on, sometimes that SPORT button light goes out while doing the cranking. I then have to engage it again once the engine is running. When the battery has a full charge and plenty to spare, those sorts of things should stay as you leave them--and the cranking shouldn't cause them to shut off.
When I first turn the key, I turn it to just short of cranking, so that I can read my oil level (997.1 engine, obviously) but during that 6 second wait I press the SPORT button. When I then go to crank the engine on, sometimes that SPORT button light goes out while doing the cranking. I then have to engage it again once the engine is running. When the battery has a full charge and plenty to spare, those sorts of things should stay as you leave them--and the cranking shouldn't cause them to shut off.
Drifting
Joined: Dec 2009
Posts: 3,035
Likes: 15
FWIW, Mine is on the battery maintainer 24/7/365. I park the car and then plug it in. I figure I do everything else to keep the car "new" why not pamper the battery too?
Burning Brakes
Joined: Jan 2008
Posts: 1,199
Likes: 6
From: Dana Point, CA
Do you leave the car locked (alarm set) while the maintainer is plugged in?
Reason i ask is that i have had the alarm go off (for no obvious reason) in my garage while on the maintainer. Dealer said no faults registered.
I wonder if it is a voltage fluctuation thing when the maintainer kicks on/off.
Any one else experience this?
Reason i ask is that i have had the alarm go off (for no obvious reason) in my garage while on the maintainer. Dealer said no faults registered.
I wonder if it is a voltage fluctuation thing when the maintainer kicks on/off.
Any one else experience this?
I've never had the alarm go off like that. I have, of course, encountered the annoyance of the key fob not working when the car is parked long enough and I have to get off my lazy *** and unlock the car the old fashioned way to reset the key fob.
