 Self-discharge and passivation's impact on the battery life is complex to model, and the potential disturbance brought by lithium passivation depends in some part on the application to be served by the batteries. Applications featuring a few mA current draw, voltage cut off below 2.5V, coupled with a few seconds' allowable response time, will remain in practice passivation tolerant. Other applications with high current and voltage cut off, frequent temperature excursions above 40 degrees Celsius, have more chance of experiencing a shorter than expected field life, and this is due to low voltage readings even though there is remaining energy in the cell. Keeping this in mind, we recommend that you evaluate the effect of passivation very carefully when selecting lithium batteries, and that you speak to one of our experts in order to receive recommendations for the best solution for your application. SAFT, we energise the world, land at sea, in the air and in space.