CBC's 3 Stage chargers deliver current into a battery in several key stages. The initial charging current is at maximum until the battery reaches a specific potential or a period of time has elapsed. The charging current is then switched down to 75% of maximum until the battery reaches 2.45 volts per cell. At this stage, the voltage is reduced to 2.25 volts per cell and the charging current falls to a maintenace level.

The animation begins with the charger delivering a current limited a maximum of 10A into a 24V lead-acid battery. This is the most complex regime designed for deep discharge applications!