Wow, now that I am looking this up the pre-2012 Zero bikes used Molicell LiMn2O4 batteries instead of more common LiFePO4s (see A123) or ubiquitous LiCoO2 batte

Wow, now that I am looking this up the pre-2012 Zero bikes used Molicell LiMn2O4 batteries instead of more common LiFePO4s (see A123) or ubiquitous LiCoO2 batteries. This gives them a deeper voltage range and makes them require some form of reengineering to replace with more modern battery technology, which really does suck.