If I ride my bike almost everyday, how long does it usually last until you need to throw it back on the trickle charger? Last thing I want is to get stuck somewhere with a dead bike. Done that already at the DMV(thank you very much Mr Inspector who left the brights on for 2 hours!!!). I know every battery is different, but I am looking for an average. Also, I purchsed the battery new in May, and have charged it only that one time.