Magnum Energy Smart Battery Combiner (ME-SBC) - Manual (Page 14)

11 ©2009 Magnum Energy Inc.
Setup
3.0 Adjusting the ME-SBC TM
The above diagram represents a typical three-stage charging profi le. The fi rst
of the three stages is Bulk Charge. This is where up to 80% of the charging
is accomplished. During this stage the battery voltage increases signifi cantly
and the current that the charging source is providing to the Main Battery
is at a maximum. The second stage is Absorption, during this stage the bat-
tery voltage is held at the Absorption voltage for a period of time. By the end
of this process the charge on the battery bank is about 95% complete. The
third and fi nal stage is Float. In this stage, the remainder of the charging
is accomplished. As long as the Main Battery voltage is between the Low
Voltage Disconnect and the High Voltage Disconnect, and the Main bat-
tery voltage is above the Connect Voltage, the ME-SBC TM will pass charging
current through to the Auxiliary Battery.
The ME-SBC TM combining setpoints as follows:
Connect Voltage: (Settable: 12.8-13.8 VDC) adjusts the point at which the ME-
SBC TM passes the charge from the Main Battery bank to the Auxiliary Battery bank
or vice versa. This setting is not active until a charging source is applied to one of the
batteries and the voltage begins to increase. Once this setpoint has been reached, the
ME-SBC TM will automatically start to pass the charge current through to the other bat-
tery. Default = 12.8 / 25.6 VDC (12V /24 V system)
Low Voltage Disconnect: (Settable: 12.5-13.5 VDC) once the charging process has
begun and the battery voltage has exceeded the Connect Voltage setpoint, the Low
Voltage Disconnect becomes active. If the voltage begins to decrease, this is the
point at which the ME-SBC TM disconnects and stops passing charge current through to
the other battery. Default = 12.5 / 25.0 VDC (12V /24 V system)
High Voltage Disconnect: (Settable: 14.0-15.0 VDC) This setting should be used to
prevent the ME-SBC TM from passing through too high of a voltage from one battery to
other. If this voltage is reached, the ME-SBC TM disconnects the batteries and prevents
the high voltage from affecting the other battery. Default = 14.0 / 28.0 VDC (12V /24
V system)
Figure 3-1, Battery combining setpoints
H igh V oltage
D is c onnec t
C onnec t V oltage
D is c onnec t
Low V oltage
D is c onnec t
A bs orption Float
B attery V oltage
- C onnec ted
B ulk