INTRODUCTION The Auto Charge-3 STEP CHARGER, Model 091-128-XX-XX-(XXX)(XX) is a compact, completely automatic single channel battery charger designed specifically for periodic charging. Of rugged construction, the charger is made to withstand the shock and vibration encountered in vehicle mounted equipment. Utilizing components, which meet international safety standards, makes this charger ideal for worldwide applications.
PRINCIPLES OF OPERATION A three-step lead acid battery charger operates in the three stages described below: 1) A discharged battery is recharged at a constant current (bulk charge) until its volt- age reaches an overcharge level of 2.42 volts per cell (approximately 14.5 vdc for a 12V battery).
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THREE STAGE CHARGING CURVE ABSORPTION STAGE BATTERY CURRENT FLOAT STAGE BATTERY VOLTAGE Voltage Increasing Voltage Constant Voltage Constant Current Constant Current Decreasing Full Charge Maintained TIME STAGE I STAGE III STAGE II CONSTANT CURRENT CONSTANT VOLTAGE CONSTANT VOLTAGE (BULK) (FLOAT) (ABSORPTION) Figure 1...
INSTALLATION RECORD & WARRANTY Date Installed Installed By Vehicle Identification Vehicle Owner WARRANTY All products of Kussmaul Electronics Company Inc. are warranted to be free of defects of material or workmanship. Liability is limited to repair- ing or replacing at our factory, without charge, any material or defects which become apparent in normal use within 3 years from the date the equipment was shipped.