Thank you

 

Yes it does turn off after few days but any time i have cranked the car ( 3-4 weeks ) it has always fired right up

 

That's the unit I use as well. I plug it in as soon as I park it because I never know the next time I'll get to drive the car. It will turn off itself when the charge is full. You may notice the light go on randomly after a full charge; car obviously draws some power even when parked which will trigger the charger. One tip: lock the doors after you plug it in. Car will draw more power with the doors unlocked (not sure why??).

 

I use the Battery Manager IV from Griot's Garage. I know it's probably made by one of the "name" manufacturers, but I buy from Griot's because of the lifetime guarantee that they put on what they sell. This particular unit not only charges and maintains, but it has a switch that allows charging of both standard lead acid batteries or the newer gel-type batteries. It also comes with a cigarette lighter adapter. Great unit for the price. On sale now! http://www.griotsgarage.com/product/...ks&from=Search

The have some more sophisticated units, but this one does the job for me.

 

I have the Porsche charger and it works great for me. My car sits for two months at a time while I am on work trips. I think the second link is a newer fancier version, but the less expensive one works just fine. I have been very pleased with mine.