This paper proposes a standard and flexible test bench architecture for the testing and modeling of electrochemical energy modules. It also presents a comprehensive methodology that enables to obtain accurate models under realistic operating conditions with a low computational cost. For this purpose, three different configurationmodes of the experimental architecture setup are introduced. Finally, the test bench architecture and the experimental-methodology proposed have been validated by themodeling and testing of a Li-ion battery pack and a supercapacitor module.