I went with this CTEK (also on Amazon) which is about $10 more and had very good reviews.

 

The Ctek maintainer comes with 2 connectors to connect directly to the battery. You have a choice of quick connector alligator plugs or eyelet connectors to be attached to the battery cable connectors. To use those one needs to lift the front hood and remove the battery plastic cover access. Once the connectors are in place one can drop the hood softly over the cable. Some people have installed the eyelet connector permanently and drilled a hole to pull up the connector. I find that a hassle when an easy cigarette plug connection is available. And, by the way, the OEM Ctek unit Porsche sells has a permanently wired cigarette plug connector, without an option for other connections as is...

So I would use the Ctek maintainer with the optional cigarette adapter and according to Porsche the correct plug is the cigarette lighter plug in the center console, by the e-brake. That is so because it has a higher fuse rating. And yes, you can use an extension cord (pick a nice one, not a thin one) to extend the Ctek cord length to the wall power outlet.

Also... the Ctek unit I mentioned US3300 is a fine unit but as others said there is a new one for just a little more, the Ctek MUS 4.3 and you might just get that one.


CTEK MUS 4.3 -- .

Optional cigarette lighter adapter --
Optional cigarette COMFORT lighter adapter -- .
This latter one is an adapter with 3-LEDS giving you an idea for the state of the battery.
.

 

I went ahead and got the newer one..thanks for the help guys

 

So are you using the cig lighter or connecting to the battery's? Cig lighter works great for me. BTW, the 997 in your avatar has a funny thing sticking up in the back. It should always be retracted for photos (unless you are 17 yrs old in which case I congratulate you for acquiring a nice stable at such a young age)

 

Thanks.. I guess..yea I should have retracted that stock spoiler porsche designed..I'm 30, do I get to take pictures with it or time to grow up? Hah.. Anyways yea going to go with the cig adapter

 

What do you think of this as an alternative to a tender? Disconnect switch "with 125amp fuse to provide enough power to maintain your stereo presets and code so you don't have to keep reprogramming them"

For the electrician-minded, what are the downsides of this type of device?
you can get the same thing without the fuse for about $7.