Winterizing my Ford Think?

Hello, I just purchased a 2002 Ford Think and Everything seems be running well. I will not be using it for 5 months since it’s winter here in the Midwest. Kindly, can someone please tell me what I need to do to winterize it? My goal is to preserve the battery.

Charge your battery pack every 2 weeks.

Don’t engage Emergency Brake use blocks, corrosion on mechanical linkage to Brake shoes locks up with long periods of non-use causing drums to drag.