Mobile Ad hoc Network (MANET) is a collection of nodes formed together to make communication without need of infrastructure. Due to restricted characteristics of MANET has to relay on wireless communication. This causes the battery power is an important factor in MANET to provide reliable communication without any power failure. Many research works has been carried out to improve the battery power to avoid packet dropping or packet loss while transmitting of packets. The battery power optimization in MANET is still not come in to the wrapping up. This research article proposed a method to improve the battery power in MANET and provide the better quality in packet transmission. This is achieved by using AODV protocol with improving the routing strategy in packet transmission. The result was implemented in Network simulator and shows better improvement comparing with the existing power optimization strategy.