D B Assembly, Inc. APU Battery Chargers / Power Supply Series P-2850 units leave the

factory at 30.3 volts with no load. 95% of the aircrafts have the capability of automatically

dropping the voltage to the required voltage, depending on the amount of load applied to

the APU. If an aircraft is one of these few which can not drop the voltage required

automatically, D B Assembly, Inc. sells a Resistor Kit P/N: RK-3X15, which will

drop the voltage to the required voltage.