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USER’S GUIDE
Battery Management System
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Useful terms
Batteries: Single or multi-cell lead-acid or nickel-cadmium blocks that are
connected together in series to create a string.
Battery Management System: One complete Battery Management
System that is composed of one master unit and up to five expansion units.
Battery Management Unit: A single enclosure within a group of enclosures
that operate together as a system.
Current acceptance: The amount of current that flows into an individual
battery from the Battery Management System’s electrically isolated DC
boost supply.
Float charge: The power provided to a battery by the battery charger to
sustain the charge.
Jar: An individual battery.
Management Controller: The Battery Management System and
associated sensors, wiring, fuses, and cables.
Pilot battery: A single battery that is monitored as a representation of the
entire string of batteries.
String current: The common current flowing through the string of batteries.
The current polarity can be positive when flowing into the string, as during a
charge, or negative when flowing from the string, as during a discharge.
This current has the same value throughout the string.
To configure multiple Battery Management Systems, see
How to Export Configuration Settings.