Discharge circuit:

Developments in the world of rechargeable batteries, and the new models that have appeared in recent years, such as the metal hydride battery and the lithium-ion battery, are mainly of interest in the electronics industry. Many experimenters, hobbyists and other amateurs have stuck to NiCd cells and batteries, which have now been with us since the 1950s. The main reason for this popularity is probably their user-friendly behaviour (which is exceeded only by sealed lead-acid batteries). Another factor in favour of the NiCd battery is its low internal resistance (at least as far as sintered types are concerned), which enables it to provide fairly large currents (but not as high as lead-acid batteries).