MSP-070C Battery Maintainer
Midtronics Inc. 7000 Monroe Street Willowbrook, IL 60527
www.midtronics.com
6
Connections & Controls
The Midtronics MSP-070C converts 120-240 volts nominal AC
to a selectable (14.4 VDC, 13.6 VDC, or 13.2 VDC) voltage for use
as a power supply. After the unit has detected the battery is
fully charged and current is not being drawn from the vehicle,
it will shut down the ouput to conserve energy and protect the
vehicle.
Back View
Charging Cable Connections
Insert and rotate the charge cable
quick connectors clockwise 180° to
lock them onto the Quick Connector
Locking Post.
CAN Bus Cable Connections
Circuit Breaker
Indicator LEDs
Power
Charging
Error
Selectable Voltage Switches
Status
Master: Unit operates standalone and can
control other slave units
Off: Not used
Slave: Unit is controlled by another device via
CAN port. Output matches controlling unit
Voltage
14.4v
13.6v
13.2v
Cooling Vent
Side View
Cooling Fans
On/Off Switch
C14 Power Cable Plug-in
Locking Power Cord
Always use the red tabs on each side of the power cord connector to
release/remove it from the charger’s power socket.
Pull Up To
Release
1. Insert the control connector.
2. The connection process is complete when all three cables
are connected to the charger.
Connecting To A Battery
IMPORTANT: When charging an AGM battery, do
NOT use the 14.4v setting.
1. Identify battery terminal polarity (Negative: NEG, N /Posi-
tive: POS, P, or + ).
2. With the MSP unplugged, connect the positive clamp
(red) to the positive battery terminal and the negative
clamp (black) to the negative battery terminal.
3. Plug the power cord into a grounded 120-240 Vac outlet
and turn ON the power swtich.
Disconnecting From A Battery
1. Turn OFF the MSP power switch.
2. Unplug the MSP from the 120-240 Vac outlet.
3. Disconnect the positive (red) clamp from the positive bat-
tery terminal and the negative clamp (black) from the nega-
tive battery terminal.
Connections & Controls