I have a couple .750 mA Deltran maintainers, I just leave em hooked up. I know they are well over 12 yrs old or so..

In January I did get a Battery MINDer* 1.5 mA, that I use often on my HHR. & whatever else needs some attention.. This one can also maintain more than one battery at a time. Another plus is that is has an Extrenal Temp compensator, so in cold weather it will float at higher levels as opposed to hot weather, with a 5 year warranty..

PS: On my HHR I just hook up to the underhood connections... No Problems. My Original HHR Battery still tests at approx a 'resting voltage' of 12.87

 

Cool, thanks guys. I did notice there are slots on the underhood frame area for it, which is really good.

I had my oil changed last week and the tech said I should think about getting a block heater. When I originally bought the car the dealership said they couldn't put one on because the Turbo occupies the area. Is this true? Does anybody living in northern North America with a SS have a block heater?