Energy is a scarce resource in ad hoc mobile networks, making energy-aware communication crucial. In the ab- sence of a central controlling entity and due to its dynamic network topology, the problem of controlling the network communications in an energy-efficient way is non-trivial in ad hoc networks. The problem is elevated due to the wire- less nature of the communication, where a large amount of energy expenditure in the nodes is due to overhearing pack- ets not meant for themselves. In this paper, we introduce battery-aware routing metrics which not only take care of the battery reserve in the nodes in the routes, but also the number of neighbors these nodes can potentially interfere, and the energy reserve of these neighbors, such that the en- ergy due to overhearing is minimized throughout the net- work, specially when the neighbors are battery-deficient.