A multichannel hardware and software complex for studying electrochemical cells during charge–discharge cycling is described. The complex consists of 16 identical channel modules controlled by an on-board computer. Each channel is a four-band potentiostat/galvanostat that allows the performance of independent experiments. The modules can be hot-swapped during operation. Means are provided for connecting external sensors with an analog output to each channel. Owing to the client–server architecture, it is possible to manage the experiment, obtain measurement results, and remotely administer the device from client computers over a local-area network (LAN) or the Internet. Advanced software for numerical processing and visualization of experimental data is a part of the complex.