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spent and the voltage would drop rapidly if the discharge were to
continue. To protect the battery from overdischarging, most devices
prevent operation beyond the specified end-of-discharge voltage.
When removing the load after discharge, the voltage of a healthy
battery gradually recovers and rises toward the nominal voltage.
Differences in the metal concentration of the electrodes enable this
voltage potential when the battery is empty. An aging battery with
elevated self-discharge cannot recover the voltage because of the para-
sitic load.
A high load current lowers the battery voltage, so the end-of-
discharge ...