Since I rent a condo and don't have my own garage with the ability to easily charge my Model S every night, I'm curious what impact different charging habits may have on the Model S's battery life. Here's a list of possibilities. A.) I only charge it every few days (1x - 2x a week) since my commute is short, and do so by charging at public charge stations, friends' houses, work (if they were to have a charge station), etc. If I have the 300 mile range Model S and my commute is just 20 miles round trip, I could easily get by with infrequent charging, but at what cost to the battery life? B.) I get access to an electrical outlet in my complex but it's only 120V. I charge it every night via 120V, and am OK with not always being at full capacity because my commute is short. If I am planning a longer trip, I would need to plan accordingly and let it charge longer So long story short, what impact on battery life would it have if I were to charge the battery infrequently (only 1x - 2x a week as an example), charge it primarily with just a 120V standard outlet, or a combination of the two? Keep in mind that I may also rarely have it fully charged since I wouldn't have the luxury to charge it overnight, every night at 240V.