996, How long can it sit before it needs a charge

[rbogh901]

In other words, what can you expect if you leave the car for 3 days, a week, longer? I don't want to have to hook up the trickle charger if I don't need to.

[plexiform]

You will need to. Unless its your daily driver it'll need a trickle charger. I've heard people have trouble starting 3days after sitting on the short side and definitely by a week of sitting you'll have issues.

[NutmegCarrera]

Mine sits for weeks at a time.
I don’t drive it more than a day or two some weeks, and depending on my schedule and weather, it can be a while. I do put a maintainer on it pretty soon now because of the snow and salt.

[markp92692]

Second post above. my car sits for 2-3 weeks at a time. Starts right up every time. I do have a 2yr old heavy duty battery

[rbogh901]

Originally Posted by markp92692

Second post above. my car sits for 2-3 weeks at a time. Starts right up every time. I do have a 2yr old heavy duty battery

better than 2 days anyway. it would be nice if you could put them to hibernate...

[rbogh901]

Is it worse with the car locked or unlocked?

[cdrik915]

It's very important removing the key , and locking the car.

Like this , all the electronic system is desactivated .

[Uwon]

I don’t find any measurable difference in battery discharge whether the car is locked or unlocked. As others have noted, you can’t leave the key in. Ask me how I know.
Johan

[rramos439]

Well my battery is dead. Mg car was left unlocked & didnt start it for 2 weeks. Was on vacation. Need a new battery?

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[rbogh901]

Can you jump it ? I think the manual says no but maybe that's over reacting.

[rramos439]

Won't jump. Tried charging battery too. Won't hold a charge.

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[rbogh901]

Originally Posted by Uwon

I don’t find any measurable difference in battery discharge whether the car is locked or unlocked. As others have noted, you can’t leave the key in. Ask me how I know.
Johan

haha, i did the same thing with my 964.

as for measurable difference, did you attempt to really compare?

[Audidude]

Originally Posted by rramos439

Won't jump. Tried charging battery too. Won't hold a charge.

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Dead battery.

You can jump it, but safer to use charger. If it is totally flat (i.e. no current available) a standard charger won't work - in that case you can connect another battery to the flat one and then the charger will kick in, then you can disconnect the good battery.
But if it won't hold a charge you need a new battery.
Allowing a lead acid battery to fully discharge it kills it.

The pain is if the frunk is closed and you have a dead battery.... RTFM.


Cheers

[hbbrewer]

I learn the hard way, all locked up and the battery dead. lol I always un latch the front when I pull it in the garage. Lot easier when you find out its dead. Going get a new battery tender brand maintainer, see if that works. This car eats batteries. But I wasn't locking the doors, will try that now. with the maintainer.

[rramos439]

Originally Posted by Audidude

Dead battery.

You can jump it, but safer to use charger. If it is totally flat (i.e. no current available) a standard charger won't work - in that case you can connect another battery to the flat one and then the charger will kick in, then you can disconnect the good battery.
But if it won't hold a charge you need a new battery.
Allowing a lead acid battery to fully discharge it kills it.

The pain is if the frunk is closed and you have a dead battery.... RTFM.


Cheers

Thanks

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[rbogh901]

Originally Posted by hbbrewer

I learn the hard way, all locked up and the battery dead. lol I always un latch the front when I pull it in the garage. Lot easier when you find out its dead. Going get a new battery tender brand maintainer, see if that works. This car eats batteries. But I wasn't locking the doors, will try that now. with the maintainer.

Does anyone know if there is a power draw if:

The hood is unlatched?
The door is unlocked?
A window is down?

[Bear911]

Just want to add that my 99 C2 used to drive me completely mad.

I replaced the battery with a similar one when I bought the car. The battery wouldn't last longer than a week, even when the car was left locked. Eventually figured out that the PO had put too small a battery in. When I replaced the battery again, I used the proper capacity and the issue went away. Can leave the car for weeks now (provided it is locked, leaving open does drain it faster!) Maybe worth checking.

[rramos439]

Thanks

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[rbogh901]

The car has a stand by mode that stops after 5 days to save battery...

[rbogh901]

Apparently you can bump start them. It's mentioned in the operating manual.