14 degrees proved too much for the old POS wrecker battery in the 95. That'* ok, it was only 20 bucks last year. But then again, it does get more costly (read on).
First of all, how do you swap batteries around without losing head unit programming and PCM power?
small battery charger tied into the main feed bus.
Old Optima (5 years now) still has 62% of it'* reserve power left:
If you haven't figured it out, the new Optima went to the Zilla. The Zilla'* old Optima is going to the SLEeper:
The extra cost is that my alternator didn't appreciate the battery not appreciating the cold recently, and it also went (going fast). I can hear the bearings grind, and it hits 120 degrees after about a minute of running:
Time to drop another $150 before this thing fries something else.