Need advice
 

I do not have a heated work shop so it gets down right cold. My car has an anti gravity battery and I do not have a battery tender made by them. What is the best thing to do? Start the car every now and then? Or pull the battery and keep it some where heated? Car is on gas so it is not pickled for the winter.
Thanks for any advice offered.

Bring it inside and hook up charger every once in awhile to keep it fully charged is what i do

I kept my intigravity in the cold all winter without charging it no problem last year. But I'm sure it's better to store it in a heated climate. Now as far as charge, I have been told that that specific battery doesn't like to be stored with a full charge. Half charge is what I have been told to leave it at. But I have not personally tested this theory yet.