Dave Walsh, have you installed the Antares hard/soft upgrade yet for "charge plus". The software revision 6 provides for better charging and balancing of the batteries. There are two of us here in the US that are going to have this done in January. The factory is in the process of writing a new software version 7, which ads a number new functionalities.
One of the more interesting functionalities is internet access, which would allow the factory to access the US aircraft remotely and even perform software fixes and upgrades from Germany. On a side note; due to improved monitoring, version 7 will also make the recurring (normally annual) inspection have 3 years of validity, significantly reducing inspection costs for EASA certified aircraft. Version 7 is expected to be certified in the autumn of next year.