ChargeMaster Plus 12/75-3, 12/100-3, 24/40-3, 24/60-3 – User and Installation Manual
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5 OPERATING INSTRUCTIONS
5.1 Introduction
The Mastervolt ChargeMaster Plus is a fully automatic
battery charger. This means that under normal
circumstances it can be left switched on with AC power
and batteries connected. The ChargeMaster Plus is
suitable for charging of Li-ion and lead-acid batteries,
which may include maintenance-free, low maintenance,
AGM/spiral, gel or deep-cycle batteries. It operates on
both 230V and 120V.
WARNING
The MLI charging voltages on this charger fit
the Mastervolt Li-ion (MLI) batteries but do not
necessarily fit other Li-ion batteries! Always
follow the instructions provided by the battery
manufacturer!
5.2 Switching on / stand-by
The ChargeMaster Plus is activated by keeping the MODE
button pressed for approx. 3 seconds. The MODE LED will
illuminate green. If necessary and if AC power is available,
the ChargeMaster Plus will start to charge the batteries.
Note:
Once switched on, the ChargeMaster Plus
automatically resumes operation after it was
disconnected from an AC source temporarily.
By holding the MODE button pressed again for approx. 3
seconds, the ChargeMaster Plus will switch back to stand-
by: the ChargeMaster Plus stops and the MODE LED
illuminates red.
WARNING
Switching the ChargeMaster Plus to “stand-by”
does not cut off the connection to the batteries
or the AC source. This means that voltages
are still present inside the apparatus.
5.3 Status display
The status display at the front side of the ChargeMaster
Plus enables you to control the charger and monitor the
charging process.
Figure 5: ChargeMaster Plus status display
Note:
The ChargeMaster Plus can also be operated and
monitored remotely via a MasterBus remote
control panel. See section 4.2 for details
.
MODE button
Hold MODE pressed for 3 seconds to
switch the charger on or stand-by
MASTERBUS
Blinks when there is MasterBus
communication
MODE
Indicates ChargeMaster Plus
status
Battery 1, 2 & 3
Battery charge status