Those are really good batteries I hear :)
Tim

 

Oh yes, a little expensive but that's all I run in all my mustangs because they don't use acid and then I got into putting them in my daily drivers too. I had an optima in my wife's jeep, the alternator went out while we were in gatlinburg, we drove it all the way to seveirville to an auto parts store to get the alternator and back to the cabin so I could replace it, all on the battery. I swear by them. I have one that's 11 years old that's in my tractor lol.

 

Still on the OE Battery in my '08 (built in late '07), but it is garage kept & gets regularly plugged into one of my Battery MINDers*.

Resting voltage is currently 12.87 & Load tested yearly.

 

8.5 years on 2007 HHR BATTERY.

 

Also my 2007 LT is at 8.5 years on its battery

 

2 of my 3 06 HHR's still have the OE batteries in them.

 

MY 2007 HHR LT also has 8.5 years battery life. Putting it in the cool back end is part of its long life, since heat is a big killer!

 

Merged the two threads

 

Original Delco from 2008 recently replaced, with 106k miles, but was still putting out 550 cca...amazing.

 

My '08 still had the original battery until a month ago. Only replaced it 'cause I a really good deal on a battery and didn't want to deal with a dead battery in the middle of this coming winter!!