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motors have to work harder which requires the battery to deliver a large amount of power for a period of time. Adequate voltage must be
supplied also to insure the glow plug will have enough power to preheat the chamber.
When attempting to start a diesel vehicle, always fast charge the battery at least five minutes. If time permits, charge the battery as long as
possible or until the battery reaches 75% state of charge. With the charger "ON" and attached to the battery, attempt to start the vehicle. Do
not crank the engine more than 20 seconds in a five minute period. While allowing the starter to cool, allow the charger to continue to charge
the battery.
If the vehicle has two batteries installed, read the "VEHICLES WITH TWO BATTERIES" section of this manual.
VEHICLES WITH TWO BATTERIES
Many diesel vehicles and service vehicles are equipped with two batteries. This is to provide the vehicle with greater starting power capacity
or longer reserve capacity to provide power for accessories. These batteries are wired into a parallel circuit. Because of this, it will take twice
as long to charge these batteries as indicated in the LENGTH OF CHARGE table.
If one battery is charged and the other discharged, the discharged battery should be removed from the vehicle and checked.
When attaching the charger to this type of vehicle the charger should be attached to the battery which is wired closest to the starter. This
allows the charger to provide maximum starting power to the starter motor by minimizing the voltage drop in the engine cables.
PARALLEL CHARGING
This charger may be used to parallel charge up to 10 batteries with a bus bar kit, or by using a minimum 6AWG gauge booster cables to connect
the batteries together in parallel.
CAUTION: Do not connect 6 and 12 volt batteries in parallel with each other.