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Appendix D: Glossary
ADC
Analog to Digital Converter, internal controller hardware to convert
measurements into digital signals for processing.
AGM
Battery that the electrolyte is held in separators between the plates, fitted with
a pressure relief value so it only vents under unusual circumstances.
Auto EQ/Refresh After
It’s the time the battery needs to remain connected to the charger to initiate a
refresh cycle. The actual setting depends on the battery and application.
Bootload
Setting a microprocessor in a condition where you load or update its firmware.
Bulk Charge
The first stage of charge cycle where the charger is outputting maximum
current to recharge the battery as quickly as possible. Stage completes when
the voltage reaches a nominal 75-80% state of charge.
Charger Interface
PC software application required to communicate with the MPC35 controller.
Power Module
The core module that converts AC power into DC power suitable for charging a
battery.
Configuration
Setting the necessary adjustments of the MPC35 controller to suit the battery
and charging application.
dV/dt
Rate of change of voltage, slope of the change in voltage against time.
Equalize
Maintenance function using a low constant current charge to ensure all cells
inside the battery have similar voltage.
EQ/Refresh Current
The percentage of the nominal charge current that is used for the refresh,
second constant current stage, actual setting depends on the battery type and
application.
EQ/Refresh Duration
The duration of the refresh charge, it is only constant current or a combination
of constant current and constant voltage.
EQ/Refresh Lockout
Timer to prevent an equalize charge starting after a normal charge until the
battery has had time to cool down.
EQ/Refresh Max Cell
Voltage
The maximum charger output voltage during the refresh charge. Can either be
a trip or a second constant voltage stage depending on the setting of
EQ/Refresh Constant Voltage.
Finishing Charge
The stage(s) that follow the bulk charge to return the battery form 80 to 100%
state of charge which must be done more slowly than the bulk charge stage.
Firmware
Computer code that is embedded in a microprocessor
GEL
Battery that the electrolyte is trapped in a silica gel, fitted with a pressure relief
value so it only vents under unusual circumstances
IUI
Charge profile with constant current, then constant voltage, the constant
current control and automatic termination.
LED
Light emitting diode, a solid state light source that does not wear out.
