The characteristic voltage-versus-time curve for a nickel-cadmium battery on a fast charge, e.g., being charged at the C/1 rate, increases to a peak voltage and thereafter decreases. To ensure that the battery is fully charged, the fast charge is discontinued on the decreasing portion of the voltage-versus-time...http://www.google.es/patents/US4806840?utm_source=gb-gplus-sharePatente US4806840 - Method and apparatus for charging a nickel-cadmium battery
Method and apparatus for charging a nickel-cadmium battery
