Hey folks I don't ride my bike a lot these days, mainly for weekend cruises every few weeks. As a result I often find the battery is dead. That was fine in the old house where I lived on a hill and could jump start it, but now I'm on a flat I'm sh*t outta luck. I'd like to buy a battery charger for it - which one do you guys recommend? Also, where the heck is the battery on this bike, and how do I access it? Thanks in advance for your advice!