 A micromacer model of a quantum battery was proposed, consisting of a single mode of the electromagnetic field in a cavity, interacting repeatedly with a stream of qubits, all prepared in the same non-equilibrium state. The matter field interaction was modeled by the Jain's Cummings model, which showed that the coherent protocol was superior to the incoherent one, resulting in an effective pure steady state being reached for generic values of the model parameters. To further explore the effects of dissipative processes on the performance of the quantum battery, a Lindblad master equation was added to describe cavity losses. It was found that the battery's performances were slightly degraded up to moderate levels of dissipation. Overall, this work shows that micromacers are robust and reliable quantum batteries, making them a promising model for experimental implementations. This article was authored by Vahid Shagagi, Verinder Singh, Matteo Correga, and others.