Braava battery holder and charging dock

If you want to have a more powerful braava, i created a battery holder.

You have to print the file BraavaBatteryHolder.stl, remove some weight inside the Braava to compensate for the battery weight.

If you want a dock, this dock can hold all the braava parts and charge the 2 batteries. I use an arduino ( file .ino is provided ) to pilot the relay and the led for charging indication.

Printing the BraavaDockMain.stl in one part require lots of support so i made multiple part, and glued th