Abstract: A Mobile Ad-hoc Network (MANET) is a self-configuring infra-structure less network of mobile devices connected by wireless. Each device in a MANET is free to move independently in any direction and will therefore, change its links to other devices frequently. The nodes in the MANET are typically powered by batteries which have limited energy reservoir. Sometimes, it becomes very difficult to recharge or replace the battery of nodes, in such situation energy conservations are essential. Also, nodes move away without giving any notice to its cooperative nodes, causing changes in network topology and thus, these changes may significantly degrade the performance of a routing protocol. Hence, the energy consumption and lifetime of the node and link becomes an important issue in MANET. A technique is developed to make these protocols stable, energy-aware and node disjoint in order to increase the operational lifetime of an ad-hoc network. This technique uses a new routing cost metric which is a function of the remaining battery level in each node on a route. Also, it selects the least dynamic route with the longest lifetime for persistent data forwarding. Simulation results using AOMDV protocol show that combination of these techniques, the proposed protocol energy-AOMDV results in a significant improvement of the energy budget of the network and link stability as a whole resulting in increased operational life time.