Winter Prep for a rig

[SHoppe715]

So more about the battery heater debate...:twisted::poke: The way I understand it a charged battery won't freeze and a discharged one will. Makes perfect sense to me from a chemistry standpoint. Keeping on the high school chemistry angle (I'm no chemist so please correct me if I'm wrong) isn't heat a catalyst in the reaction that produces the electricity? Lower temperature = less electricity output from the reaction. So great, you have a charged battery that's not frozen but still puts out way less power to crank the engine. I also was under the impression that the alternator should keep the battery charged. If you turn a battery into a trickle charger crack baby should you run the charger all year round? I can see a battery pad overheating a battery if it's in the high 20's, but who plugs in at that temperature? The fumes from charging will corrode a heater causing a fire hazard, so shouldn't a heater just be a regularly replaced service item say every 20-30K miles or so?