I just picked up a Zero FXS and plan to use it mostly for commuting around town, maybe 20–30 miles a day. Range anxiety is real though, and I don't want to mess up the battery by charging the wrong way. Do you guys top off the battery every night, or is it better to let it drain down before plugging in? I've heard different things about charging to 80% vs 100%, and I'm not sure what actually matters with these bikes. Any tips on getting the most out of the FXS battery for daily commuting without killing it early?