Kussmaul Electronics 091-74-12 User Manual
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INTRODUCTION
The Auto Charge D2 is a triple battery system automatic battery charger designed specifically for vehi-
cles with a DDEC control and a separate engine battery.
The engine battery on DDEC equipped vehicles presents a unique problem. While it is desirable to
have a charger to maintain this battery in a fully charged condition, this battery is relatively lightly loaded.
It is never required to operate any of the vehicle mounted accessories and is rarely discharged. The
vehicle, however, may have multiple batteries which may be heavily loaded and require considerable
charging. The unequal loading may cause either overcharging the engine battery or poor charger ca-
pacity utilization. The Auto Charge D2 specifically addresses this problem and automatically recharges
and maintains both vehicle and engine batteries.
FEATURES
I. AUTO CHARGE D2 BATTERY CHARGER
• Independent charge controls for each battery
• Electronic remote sensing of true battery voltages,eliminates the need for sensing wires
• Automatic current limiting for both engine and vehicle batteries
• Built-in 5 ampere Battery Saver
• Remote triple battery charge/condition indicator
• Power “ON” LED indicator
• Battery Saver overload indicator
II. CHARGE CONTROLS & ELECTRONIC REMOTE SENSING
The charger contains three independent charge controls, one for each battery. This allows each
battery to be independently charged while maintaining battery isolation. Each battery voltage is re-
motely sensed, electronically, eliminating the need for six sense wires. Each of the charge controls
is completely automatic and stops charging the battery when it is fully charged. There is no trickle
charge and therefore no danger of overcharging and water boil-off.
III. AUTOMATIC CURRENT LIMITING
The charger contains automatic current limiting for each output. The vehicle output is limited at 25
amperes while the engine output is limited at 3 amperes. This provides the higher current to the
larger batteries where it is needed.
170 Cherry Avenue
West Sayville, NY 11796
www.kussmaul.com
Ph: 800-346-0857
Fax: 631-567-5826
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