Our 2013 C-Max has had dead battery problems, too. Today we went to our Ford Dealership and learned about Customer Satisfaction Program 13B12. A CSP is not the same as a recall, and it as an expiration date, in this case December 30, 2014. The issue that this CSP addresses is described as "On your vehicle, under certain conditions, an electronic module fails to transition to "sleep" state. Instead, the module status stays in "awake" mode and keeps other vehicle modules in "awake" mode. This can significantly increase the current drain on the battery, cause the 12-volt battery to discharge, and may prevent the engine from starting." It goes on to say that the Ford dealer will reprogram the Multifunction Display Computer to correct the battery discharge condition, and will check the condition of the 12 V battery, replacing if necessary.