Epever Tracer-BN Series MPPT, User Manual

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6
A) Bulk Charging
In this stage, the battery voltage has not yet reached constant voltage (Equalize or
Boost Voltage), the controller operates in constant current mode, delivering its
maximum current to the batteries (MPPT Charging).
B) Constant Charging
When the battery voltage reaches the constant voltage setpoint, the controller will
start to operate in constant charging mode, this process is no longer MPPT charging,
and in the meantime the charging current will drop gradually, the process is not the
MPPT charging. The Constant Charging has 2 stages, equalize and boost. These
two stages are not carried out constantly in a full charge process to avoid too much
gas precipitation or overheating of battery.

Boost Charging
The Boost stage maintain 2 hours in default, user can adjust the constant time and
preset value of boost voltage according to demand.
The stage is used to prevent heating and excessive battery gassing.

Equalize Charging
WARNING: Explosive Risk!
Equalizing flooded battery would produce explosive gases, so well
ventilation of battery box is recommended.
CAUTION: Equipment damage!
Equalization may increase battery voltage to the level that damages
sensitive DC loads. Verify that all load allowable input voltages are
11%greater than the equalizing charging set point voltage.
CAUTION: Equipment damage!
Over-charging and excessive gas precipitation may damage the
battery plates and activate material shedding on them. Too high an
equalizing charge or for too long may cause damage. Please
carefully review the specific requirements of the battery used in the
system.
AVERTISSEMENT:
Risque d‘explosion!
l'égalisation de batteries noyées peut produire des gaz explosifs,
donc il est recommandé de bien ventiler le boitier de la batterie.