No, I was trying to convey that it costs significantly less than keeping a space heater running 24/7 (which would cost about $150 a month at 14 cents per kilowatt hour).
$10 to $30 a month in power use to keep your battery toasty in the dead of winter isn't too bad a price IMO
$10 to $30 a month in power use to keep your battery toasty in the dead of winter isn't too bad a price IMO