The mobile nodes cannot "Sample" the end-to-end energy potential because an end-to-end measurement from each mobile node i to BS would be needed. Such measurements, even if initiated, can only be collected by BS. In general mobile networks are highly unpredictable at the end-to-end Quality-of-Service (QoS) and the scale of the individual node. Due to its high requirement and complicated security issues researchers concentrated on the issue of its energy consumption and consistency. This paper given an novel idea and demonstrated how energy maps can be utilized by an application to minimize a node's total energy consumption over its near-future trajectory.