In the future, the next generation cellular networks like fifth generation (5G) will comprise of billions of devices with various applications running on the devices. These applications are computer intensive and drain a lot of battery when executed in the mobile device itself. Mobile Edge Computing (MEC) has been proposed to solve these problems by offloading computation tasks of an application to the edge server in the radio access network (RAN). The conventional MEC framework suffer greater delays which is not suitable for 5G. In this paper, a new MEC framework in heterogeneous networks (HetNet) called MECH is proposed where a mobile device with limited resources has an option of offloading some of its tasks to a group of nearby mobile devices while considering the transmission power, quality of service (QoS) and state of charge (SoC) of the mobile battery. The simulation results demonstrates that the proposed framework extend battery life and reduces delays compared to the traditional MEC paradigm.