Re: What is the proper storage of a motorcycle battery in cold Wisconsin temperatures
Cooler te,peratures mean lower chemical activity so lower self discharge rate. It also means a higher charging voltage is required so charging requires a longer time. At sub-freezing temperatures a battery cannot be charged at all. (Lead-acid battery- reference ESB resulting from extensive research for US Military)
This is a disadvantage if charging is required but an advantage for long-term maintenance storage. It is common practice in some areas to charge small batteries, wrap in plastic and store in freezer.
I recommend disconnecting the battery from the bike's systems as a simple precaution against possible short circuit failure of a component, mouse chewing, etc.
In the days before smart chargers, the best solution I heard was from someone who connected his 2 amp trickle charger to the lamp socket in his garage door opener. This automatically turned on the charger for 5 minutes, twice per day.
Don't sweat it. If you prefer to have the battery accessible for monitoring, remove it from the bike and store indoors where it is handy. It will require recharging more frequently but won't achieve critical mass and destroy the continent. You can even store it on concrete without the risk of your parrot's tail feathers falling out.
WhiSTler seems to be in storage mode almost 100% of the time now so likely will sell in the spring.
HIH
Norm