NDS SMARTCHARGER SCM25 User Manual page 12

SCM25 at 12V/25A - PHASES DISCUSSION
PRELIMINARY CHECK
RESCUE
SOFT START
PULSE CHARGE
RECONDITIONING
BULK CHARGE
ABSORPTION
CHARGE
FINAL CHECK
MAINTENANCE
Battery status Check.
Charge will not start with voltage under 2.0V
and more then 15,5V
For deeply discharged battery: current will
be 500-800mA at 16V for 5 seconds until
voltage reduces to 14V (2 hours max timeout)
If battery voltage is between 2.0V–6.0V a 5A
current is delivered to re-activate the battery
elements, until voltage rises above 6V (2
hours max timeout)
If battery voltage is between 6.0V-10.5V,
current will be at 5A and 12,5A for 5 seconds
alternately (4 hours max timeout)
After Pulse charge, If battery voltage reaches
10.5V–12.0V smartcharger will constantly
deliver 12,5A current to charge the battery
until it has risen over 12.0V. This stage will not
be carrying over 8 hours, otherwise the
battery is classified as defected.
If battery level has reached 12.0V-13.6V. A
constant current 25A, will charge the battery
until it has reached 80% of the capacity.
If battery level is between 13.6V-14.4V (14.7V
for AGM), Smartcharger will switch to
Constant voltage mode: output current will
automatically adjust as according to the raise
of battery voltage. The charge will stop at
14.4/14.7V. Smartcharger will turn on the Full
charge icon led if the current reduces to 1.5A.
Battery voltage is monitored for 1 minute. If
voltage has a dramatic drop down under
12.2V, the battery will be classified as
exhausted and the error led will turn on. If
voltage can be retained at 1 minute, then the
Maintenance mode will start.
Battery maintained at 13,7V, a proper work
level to be kept always ready to go.
If voltage drops below 12V, smartcharger will
restart from bulk charge
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