Kussmaul Electronics 091-89-12 User Manual
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INTRODUCTION
The Auto Charge 4000 is a compact, completely automatic, dual channel battery charger designed for
vehicles with a dual battery system. The charger is ruggedized to withstand the shock and vibration
encountered by vehicle mounted equipment.
FEATURES
I. AUTO CHARGE 4000 BATTERY CHARGER
• Independent charge controls for each battery
• Electronic remote sensing of true battery voltages, eliminates the need for sensing wires
• Automatic current limiting
• Built-in Battery Saver
• Remote dual battery charge/condition indicator
• Power “ON” LED indicator
• Battery Saver overload indicator
II. CHARGE CONTROLS & ELECTRONIC REMOTE SENSING
The Auto Charge 4000 contains two independent charge controls, one for each battery. Automatic
electronic remote sensing measures the true voltage of each battery, eliminating the need for the
additional sense wires. The output current of any charger is inherently a series of pulses whose fre-
quency is determined by the power line frequency. Therefore there are brief intervals during which
no charging current flows. During this brief interval the Auto Charge 4000 measures and stores the
battery voltage. This voltage is compared to a standard and any error is detected and used to con-
trol the charger output to the desired level. There is no “trickle charge” and therefore no danger of
overcharging and water boil-off.
III. AUTOMATIC CURRENT LIMITING
When batteries are severly discharged, some battery chargers can be overloaded due to the high
charging current required. The Auto Charge 4000 contains an automatic current limit. This current
limits the output current to the rated 40 amperes when charging a deeply discharged battery or if the
starter cranks the engine while charging. The current limiter thus eliminates the need for an ignition
interlock circuit.
170 Cherry Avenue
West Sayville, NY 11796
www.kussmaul.com
Ph: 800-346-0857
Fax: 631-567-5826
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