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h. Automatic"high rate" constant current charge circuit with automatic switchover to <br /> a lower "equalize" constant voltage charging rate and finally to a "float" charging <br /> rate. When the batteries has lost charge and AC power is applied to the charger <br /> input, the charger shall operate in the "high rate" constant current mode until the <br /> batteries voltage rises to the preset "equalize" level. At the preset "equalize" level, <br /> the charger shall switch to the "equalize" constant voltage mode until the current <br /> required to maintain this voltage drops to 50% of the charger's high rate current. <br /> The charger shall now switch to the lower constant voltage "float" mode (fully <br /> charged batteries). The charger shall continue to operate in this mode until AC input <br /> power is lost or the current required to maintain the batteries at float voltage setting <br /> exceeds a preset amperage. <br /> i. Current limiting. Current limiting circuitry shall be provided to prevent damage to <br /> the charger from being overloaded at low battery voltage such as occurs during <br /> short circuit conditions or during engine starter cranking. <br /> j. The battery.charger shall be powered from 120 VAC. <br /> r <br /> ENGINE GENERATOR <br /> 11500 - 17 <br />