Synthesis of organic molecules by utilizing the principles of electrochemistry satisfies 9 out of the 12 postulates of green chemistry, conferring electrochemical synthetic methodologies with clean, safe, and green tags. However, electro-organic synthesis is a heterogeneous interfacial reaction demanding significant driving force in terms of voltage or current. Here, we demonstrate an unusual route for electro-organic synthesis during electricity generation in a battery, where the positive half-cell is designed to function as an organic reactor generating useful chemicals and fuel molecules. The proposed electroorganic synthesizer Zn battery couples organic synthesis with power production during discharge chemistry, thereby demonstrating its tremendous potential in the sustainable energy landscape.