Outback Power Systems FLEXmax Extreme Owners Manual - Manual (Page 40)

MATE3 Screens
38 900-0150-01-00 Rev A
Temperature Compensation
The Temperature Compensation screen allows the user to control the Absorbing and Float voltage limits during
charging when using a Remote Temperature Sensor (RTS). The RTS adjusts charging voltage depending on
battery temperature. See page 72 for an explanation of compensation.
Figure 39 Temperature Compensation
NOTE: If the Slope setting is adjusted to any specialized value other than 5 mV, the MATE3 will communicate
this value to other networked OutBack devices. The other devices will use the same value. This system-wide
compensation only works if there is a single RTS on the system and it is connected to the FLEXmax Extreme.
In all cases, the batteries should be monitored to ensure they are being charged according to the battery
manufacturer’s recommendations.
Battery Equalize
CAUTION: Battery Damage
 Do not equalize any sealed battery types (VRLA, AGM, Gel, or other) unless approved by the
manufacturer. Some batteries may suffer severe damage from equalization.
 Contact the battery manufacturer for recommendations on equalization voltage, duration,
schedule, and/or advisability. Always follow manufacturer recommendations for equalization.
Equalization is a controlled overcharge that is part of regular battery maintenance. See page 72 for an
explanation of equalization. The Battery Equalize screen allows the user to control the settings for the
equalization process.
Figure 40 Battery Equalize
Equalization can be triggered manually. (See pages 27 and 72.) Equalization can also be triggered automatically
on a schedule. The Days setting controls this schedule, setting a delay of the appropriate number of days
between the end of one cycle and the beginning of the next. If this item is set to zero, the controller will not
perform automatic equalization.
Set Points:
 Mode – Selects between Limited (which uses the upper and
lower voltage settings below) and Wide (which uses the
entire range of compensation).
 Slope – The amount of temperature compensation. This is
measured in millivolts per degree C per battery cell.
 Limited: Lower Battery Voltage – The lowest range for
temperature compensation in Limited mode.
 Limited: Upper Battery Voltage – The highest range for
temperature compensation in Limited mode.
Set Points:
 Equalization Voltage – Target voltage for equalization.
 (Equalization) Hours – Amount of time held at
Equalization voltage.
 Automatic Battery Equalization – The number of days
between equalization cycles.