Electrochemical cells and methods and apparatus for regulating their charging

The invention claims a rechargeable electrochemical cells; the battery is provided with for determining a charging end point in response device. Is special, a arranged on the rechargeable metal hydride battery opening parts and two as a response pressure switch. The one response pressure switch can also comprises for via the internal pressure exchaust gas system. An or, a rechargeable battery is arranged comprises a on the surface strain gage; and resistor of the strain gage the battery of the bulge of wherein the raising of internal pressure the charging method of making. Intervals; a rechargeable battery is combined with a charging source is; the charging supply capable of providing voltage; the constant current, the alternating current or between the voltage of the lowest on value and on maximum value exchange.