Systems for batteries or galvanic cells are disclosed. The system comprises a mixing chamber. The system further comprises a first reservoir, in fluid communication with a mixing chamber, the first reservoir configured to store a concentrated electrolyte. Additionally the system comprises a pump configured to pump a fluid into the mixing chamber. The system further comprises an electrochemical energy cell in fluid communication with the mixing chamber wherein the mixing chamber is configured to receive the fluid and concentrated electrolyte and mix the fluid and the concentrated electrolyte to produce a diluted electrolyte. Finally the system comprises the electrochemical energy cell configured to receive the diluted electrolyte, use the received diluted electrolyte for an electrochemical reaction and remove the used electrolyte solution from the cell.