Noob here. Because I'm hoping to use my future Evo (Jet or Cross) on a daily 24m commute for years to come, I expect I will have to replace the battery periodically (2-3 years?). The BH battery cases are designed to blend into the frames, so how long might BH manufacture batteries for a given line? Once they stop, is it practically feasible to just have the cells replaced within an old battery case, so that I'm not stuck once BH decides to stop making batteries for my specific bike? Just trying to get some idea of the true long-term cost of owning one of these bikes.