Operation
40 900-0167-01-00 Rev A
Equalization
Equalization is a controlled overcharge that is part of regular battery maintenance. Equalization
brings the batteries to a much higher voltage than usual and maintains this high voltage for a period
of time. This has the result of removing inert lead sulfate compounds from the battery plates. It also
reduces stratification by circulating the electrolyte.
Equalization follows the same pattern as standard three-stage charging, as shown in the figures on
page 34. However, instead of the Absorption voltage and time set points, it is controlled by the
Equalize Voltage
and
Equalize Time
settings in the MATE3.
The FXR inverter can perform Offset when equalizing. (See page 42.)
Equalize Voltage
is also the
reference voltage for Offset during equalization.
This process must be started manually using the system display. The inverter cannot be programmed
for automatic battery equalization. This is a safety measure.
Equalization is normally performed only on flooded lead-acid batteries. The schedule for equalization
varies with battery use and type, but it is usually performed every few months. If performed correctly,
this process can extend battery life by a considerable amount.
Equalization is not normally performed on nickel-technology batteries or any sort of sealed battery.
CAUTION: Battery Damage
Do not equalize OutBack EnergyCell batteries of any model.
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.
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