As the intelligence of ever miniaturized robots continues to increase, there arises an escalating demand for power, even reaching milliwatt levels, to facilitate data transfer, processing, and the execution of complex tasks. Evidently, achieving such elevated power demands through a single battery with substantially reduced size proves to be highly challenging, unless a revolutionary battery paradigm with substantially enhanced capacity compared to current technologies emerges. A hybrid solution that integrates energy-conversion technologies such as photovoltaic cells with batteries offers a feasible approach. In this setup, the battery functions as a backup energy source, stepping in when energy-conversion systems are not operational. In addition, the battery can provide high power for data processing and communication while it can be recharged during periods of low-power operation. This approach could alleviate the demand for extremely high energy density in batteries alone. Alternatively, a paradigm shift of regarding small batteries as autonomous robotic entities could present an innovative outlook. By introducing motion and docking mechanisms, these batteries could potentially self-assemble into collectives, resembling chains, to address peak power requirements during robot communication and data processing. A single battery would then be adequate when the robot transitions into idle or low-power modes. This visionary approach would combine small-scale robot and battery advancements, paving the way for a fresh trajectory in battery development.