Panamera The 4-dour coupe by Porsche

If not driving the Panamera does the battery die

Thread Tools
 
Rate Thread
 
Old Oct 1, 2018 | 05:52 PM
  #1  
newporsche's Avatar
Thread Starter
|
Registered User
5 Year Member
Joined: Sep 2017
Posts: 368
Rep Power: 0
newporsche is infamous around these parts
If not driving the Panamera does the battery die

if you keep the panamera in the driveway and drive another car as your daily, do you have to do anything with the panamera to prevent the battery from dieing? start it up and drive it around the block once every few weeks? or can it just be left without startup for many weeks/months? anyone had any issues with this?
 
Old Oct 1, 2018 | 08:37 PM
  #2  
DogWood's Avatar
Registered User
5 Year Member
Joined: Apr 2018
Posts: 935
From: Bend, Oregon
Rep Power: 47
DogWood is infamous around these partsDogWood is infamous around these parts
you're going to want to put a battery tender on it, if your battery is drained you'll loose all your settings and have to work thru the procedures, not just talking about your radio presets, but your steering and other rather vital items.
 
Old Oct 1, 2018 | 09:46 PM
  #3  
newporsche's Avatar
Thread Starter
|
Registered User
5 Year Member
Joined: Sep 2017
Posts: 368
Rep Power: 0
newporsche is infamous around these parts
oh damn yeah i know thats an issue with the mercedes as well....how long before the battery gets totally drained? is it weeks or months of being left without being driven? battery tender needs to be constantly plugged in which doesnt make it too viable a solution
 
Old Oct 1, 2018 | 10:47 PM
  #4  
DogWood's Avatar
Registered User
5 Year Member
Joined: Apr 2018
Posts: 935
From: Bend, Oregon
Rep Power: 47
DogWood is infamous around these partsDogWood is infamous around these parts
that depends on what shape your battery is in, I wouldn't go much more than a week or 2 without charging it up..... I really don't know how much current the car is pulling while parked - that would really tell you how long you could go.

When I put mine away for the winter I'll have a battery tender on it until spring
 
Old Oct 2, 2018 | 04:19 AM
  #5  
riden's Avatar
Registered User
Joined: Aug 2013
Posts: 249
From: Pittsburgh PA
Rep Power: 24
riden has a spectacular aura aboutriden has a spectacular aura aboutriden has a spectacular aura about
Since the charging system does not necessarily fully charge the battery due to charging strategy, if the tender is used to reach 100% charge, and the car is allowed to sit without opening the doors, I would guess it can sit for a month without a problem. But you can gather your own data by monitoring how long it takes the tender to apply a full charge after the car sits for a month.
 
Old Oct 2, 2018 | 03:00 PM
  #6  
knowspin's Avatar
Registered User
Joined: May 2017
Posts: 74
From: Massachusetts
Rep Power: 14
knowspin has a spectacular aura aboutknowspin has a spectacular aura aboutknowspin has a spectacular aura about
Originally Posted by newporsche
battery tender needs to be constantly plugged in which doesnt make it too viable a solution
If that's the case, your only option is to disconnect the battery, and I don't know what that means for rebooting all the systems.
 
Old Oct 2, 2018 | 09:32 PM
  #7  
ciaka's Avatar
Registered User
10 Year Member
Joined: Mar 2012
Posts: 2,298
From: TX
Rep Power: 123
ciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant future
any motorized vehicle, when not used, will lose battery charge over time. When charge gets low enough, it will prevent vehicle from starting.
As said , battery tender is what you need in these cases. Plugged in keeping battery charged til you choose to drive.

You can get a pigtail that can be routed to front of car grille, so you can just plug in without lifting hood, making it viable again.
 
Old Oct 3, 2018 | 08:10 PM
  #8  
newporsche's Avatar
Thread Starter
|
Registered User
5 Year Member
Joined: Sep 2017
Posts: 368
Rep Power: 0
newporsche is infamous around these parts
if its driven like once or twice a week would that keep it going?
 
Old Oct 3, 2018 | 09:00 PM
  #9  
DogWood's Avatar
Registered User
5 Year Member
Joined: Apr 2018
Posts: 935
From: Bend, Oregon
Rep Power: 47
DogWood is infamous around these partsDogWood is infamous around these parts
Depends on how long you drive it

but yes that would do the trick
 
Old Oct 3, 2018 | 09:03 PM
  #10  
ciaka's Avatar
Registered User
10 Year Member
Joined: Mar 2012
Posts: 2,298
From: TX
Rep Power: 123
ciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant futureciaka has a brilliant future
Once or twice a week, I would definitely put a trickle charger on it. This means you are driving it at most about 25% of the time. The other 75% it is in garage.
If you get a beautiful and awesome car like that, you are paying for keeping it in garage for 75% of the time. IMO I would drive it often. That will keep the battery charged, and all sub systems operational as they are monitored and are getting used for their purpose.
Often, if you do not use a car, it ends up having more problems because the inactivity. I like to get my money's worth, so drive it well.


Originally Posted by newporsche
if its driven like once or twice a week would that keep it going?
 
Old Oct 3, 2018 | 09:13 PM
  #11  
DogWood's Avatar
Registered User
5 Year Member
Joined: Apr 2018
Posts: 935
From: Bend, Oregon
Rep Power: 47
DogWood is infamous around these partsDogWood is infamous around these parts
Geek Answer found elsewhere
"
Richard Smith, I have owned a few Cars, (USA made and others)
Answered Jun 17 · Author has 4.2k answers and 901.1k answer views
Ok ,so this is a ‘good question category for me’.

Lets take an average car, and an average battery for the car.

Lets assume that the battery is up to snuff, and can handle a start cycle of 15 seconds at 200–300 amps.

How much power is that ?

Well, the “typical” battery voltage when cranking will go down somewhat, and should hold at about 12 volts.

So, 1/4 minute at 300 amps at 12 volts gives 3600 Watts for that duration of time.

Batteries are rated in Capacity by the number of Amper-Hours it can sustain, as well as the COLD Cranking amps.

So, lets assume that it is COLD, and the temperature is at approximately 0 celcius.

The Starter will still want 300 amps to crank over.

How long would the alternator have to run to replace that 3600 Watts per second that the starter is actualy cranking?

Lets assume that the charging system is only 75% efficient, and in order to get that energy back into the battery, you would need 25% more energy to push back into the battery. 25% of 3600 Watts are 900 watts.

So add taht to the total to replace , that gives 4500 Watts of energy , Usually when the alternator runs, it is pushing up to 100 amps back into the battery. Some smaller alternators may only push 80.

Lets go with the smaller alternator (80 amps). Lets also assume, that it is also 80% efficeint, and you only get 50–60 amps steady when it is running at 2000 RPM to re-charge the battery.

So, 60 Amps at 14 volts (it has to be higher to make the electricity flow into the battery) gives a power amount of 820 Watts.

That 820 Watts, then gets reduced due to corrosion.

Not of the positive battery, but of the negative frame components. So the pwoer that gets delivered to the battery is more like 750.

The amount needed to be replenished is 4500 times 15 seconds. 45000+22500 = 67500 Watt-seconds

The alternator puts our 750 to the battery, bu the time it gets it.

67500 Watt-seconds divided by 750 gives 90.

Even if the alternator was pushing out 30 Amps to the battery, that would double the 90 seconds to 180 seconds or 3 minutes.

So, there you have the analysis of the re-charge cycle in freezing temperatures, to re-charge your battery to have the energy replaced.

Three minutes

"

Now while it would recharge in 3 minutes, your oil wont be up to temperature and you really don't want to shut it down until it is.
(oil doesn't get hot enough the condensation and gas that got past the piston rings won't evaporate and will water down you oil)
 
Old Oct 4, 2018 | 05:24 PM
  #12  
orangeokie's Avatar
Registered User
Joined: Apr 2017
Posts: 178
From: Oklahoma
Rep Power: 0
orangeokie is infamous around these parts
It has been my experience that German auto really perform better when the battery is kept on a trickle charger. I have three German vehicles and only a two-car garage, so I have to rotate the Audi and the Porche with an off-home-site garage. My daily driver is a pickup that stays outside. I keep a trickle charge on both cars all the time and have never had any electrical problems. My wife likes her W8 Passat and drives it every day so it doesn't need to be trickle charged.
 
Old Oct 17, 2018 | 03:24 PM
  #13  
rx7ven's Avatar
Registered User
Joined: Apr 2018
Posts: 5
From: San Francisco
Rep Power: 0
rx7ven is infamous around these parts
if your car is parked in the garage, i highly recommend the deltran battery tender 3 amps from costco. it is only $40 which is very inexpensive and works very well.
 
Old Oct 19, 2018 | 09:48 AM
  #14  
skiracer13's Avatar
Registered User
5 Year Member
Joined: Jul 2017
Posts: 334
From: Colorado
Rep Power: 22
skiracer13 is infamous around these parts
I’ve always wondered why people would buy a car like this and park it for the winter months. When I had my 996 C4 cab I put the aluminum hardtop and winter wheels w/ snow tires and drove it regularly. I really believe these cars were meant to be driven.

i will return from a 2+ week trip overseas this weekend and curious if my PTT will start since in my rush to depart I forgot to connect my tender (I have the Porsche device that plugs into the lighter socket). I agree with all posted comments that modern German cars need a strong battery charge to function properly and reliably.
 
Old Oct 21, 2018 | 08:32 AM
  #15  
skiracer13's Avatar
Registered User
5 Year Member
Joined: Jul 2017
Posts: 334
From: Colorado
Rep Power: 22
skiracer13 is infamous around these parts
Started right up like a champ despite a cold snap last week w/ temps in the teens. .
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -6. The time now is 06:33 PM.