Epever Tracer-AN Series, User Manual

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7
battery.
NOTE: 1) Due to the influence of ambient circumstance or load working,
the battery voltage can’t be steady in constant voltage, controller will
accumulate and calculate the time of constant voltage working. When the
accumulated time reach to 3 hours, the charging mode will turn to Float
Charging.
2) If the controller time is not adjusted, the controller will equalize charge
battery once every month following the inner time.
C) Float Charging
After the Constant voltage stage, the controller will reduce charging current to
Float Voltage set point. This stage will have no more chemical reactions and all
the charge current transforms into heat and gas at this time. Then the
controller reduces the voltage to the floating stage, charging with a smaller
voltage and current. It will reduce the temperature of the battery and prevent
the gassing and charging the battery slightly at the same time. The purpose of
Float stage is to offset the power consumption caused by self consumption and
small loads in the whole system, while maintaining full battery storage
capacity.
In Float charging stage, loads are able to obtain almost all power from solar
panel. If loads exceed the power, the controller will no longer be able to
maintain battery voltage in Float charging stage. If the battery voltage remains
below the Recharge Voltage, the system will leave Float charging stage and
return to Bulk charging stage.