In mobile ad hoc networks (MANET) ,computation devices are battery powered. Limited energy in battery constrains the computation and communication of each device. Hence services like sharing a data or information among users becomes a challenging issue in critical environments like military applications, rescue operations etc. To overcome this, we have proposed a replication model which replicates shared data in suitable nodes. It addresses how data sharing can be done effectively by periodically checking the remaining energy of each node that holds the replica. If the remaining energy falls below a threshold level, replica can be relocated to appropriate nodes that has the maximum energy. Therefore our proposal ensures file availability, improves the network life time, decreases query response time, increases energy utilization, decreases number of packet drops due to battery depletion of a node. © 2010 Springer-Verlag Berlin Heidelberg.