Samlexpower SEC - 1215A Owner's manual - page 11
Charging more than one bank of batteries
CAUTION !
When charging more than one bank of batteries at the same time
using 3 Stage Charging, ensure that the batteries in the banks are in a similar
discharged condition. If one bank is completely discharged and another is almost
fully charged, the bank that is fully charged will be subjected to over charge condi-
tion during the time when the charger remains in Boost Stage for charging the
completely discharged bank
Powering other DC Loads
The charger can be used as a power supply or as a DC UPS . For both these applications,
first set the Dip Switch to “Battery with load”. ( See under “ Selecting the Type of
Battery and Charging Stages” on page 4 )
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 three positive terminals. 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
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 as explained above under “Charging a Battery outside the Vehicle” on
page 9. Switch on the charger and then switch on the DC load
Page 10