At Law

Hi Guys,

How often and when are you using your battery maintainers
for your 997's?
The owner's manual is vague about when the maintainer
should be used depending on how long the car will be sitting.

I have heard it should be used if the car sits for more than
a week, however, this seems unecessary.

stevepow

I just connect it everytime I park - easier than worrying about a schedule. But I do not drive every day - if you do, and drive a decent distance, you might not need it at all.

Frino

I use my Porsche maintainer when I know I won't be driving the car for at least four days--a day or so less when the mercury goes below freezing.

Fahrer

I use my car every weekend and I put at least 100 miles on it each weekend so I do charge the battery up. I am not using the battery maintainer yet but I do plan to use the maintainer during the winter months when I expect that I will not have so many chances to drive the car.

ricster

If it sits more than a few days just plug it in.

Ucube

After I park in the garage, if I anticipate not driving it the next day, then I plug it in.

At Law

So you guys are in the habit of using the maintainer
quite frequently.

I don't drive it every day; perhaps three times per week.

Has anyone heard any negative effects of using the maintainer
too often?

brad@tirerack.com

Anything that keeps a battery at a constant charge will only prolong the battery, regardless of application.

Pincomar

The only downside I can think of is a (slightly) higher electricity bill at home?

Mark.

No HTwo O

If I ain't driving it...it's plugged in.

RonCT

Holy smokes! I only plug mine in when I store the car for the winter. Either the 05 Boxster S or the 09 C2S can sit just fine for weeks on end without use and there's zero impact. I did the same with my GT3, 07 C2S, etc. There's no battery / draw problem with these cars that I've ever heard of or experienced myself. I suppose if I knew I wasn't going to drive either Porsche for say a month, I'd plug it in (I do have 2 maintainers for winter).

DanJK

I have one on order. Ask me why.

richc

Mine caused my battery to overflow, covering the floor in a pool of white liquid. I stopped leaving it plugged in after that incident. I think the white stuff was very acidic, it appears to have left a lasting mark on the cement floor.

abe

If you drive three times a week...don't bother. If I know I am not going to drive for more than 3-4 days...then I plug it in.
abe

sharmat

I think the original battery is whimpy. Therefore necessitating frequent plug in. Maybe with a good replacement battery plug in is not as necessary.