POWERING OTHER DC LOADS
The charger can be used as a power supply or as a DC UPS (DC Un-interruptible Power
Supply. For both these applications, first set switches S1 and S2 of Dip Switch (5) to off
position to set the charger to work in 2 stage mode (See under “Selecting the Type of
Battery and Charging Stages”)
USING THE CHARGER AS A POWER SUPPLY: To use as a power supply, first switch off
the DC load. Connect the DC load between the common negative terminal and one of the
2 positive terminals (either 1 or 2). Ensure that the maximum current drawn by the DC
load is below the maximum current rating of the charger. Switch on the charger and then
the DC load
USING THE CHARGER AS A DC UPS: In a DC UPS (Un-interruptible Power Supply) ,
the charger simultaneously powers the DC load as well as the battery. As long as the AC
power to the charger is available and the charger is working normally, the charger will
supply the DC load as well as charge / float the battery. In case the AC power fails or if
the charger stops working, the battery will automatically power the DC load. As soon as
the AC power to the charger is restored, the DC load will once again be fed by the
charger and at the same time the battery will be recharged.
Caution!! Please ensure that the sum of the current drawn by the DC load and the current
desired for charging the battery is less than the maximum current capacity of the charger
To use as a DC UPS, first switch off the DC load and connect it to the battery. Now
connect the battery to the charger as explained above under “Charging a Battery outside
the Vehicle”.
Switch on the charger and then switch on the DC load
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