Battery Charging Stage - Epever Tracer 2210CN User Manual

If the program works improperly after appearing Multi-MPP, the system will not work
on the real max power point, which may waste most solar energy resources and
seriously affect the normal operation of the system. The typical MPPT algorithm,
designed by our company, can track the real MPP quickly and accurately, improve
the utilization rate of the array and avoid the waste of resources.

1.5 Battery Charging Stage

The controller has a 3 stages battery charging algorithm (Bulk Charging, Constant
Charging and Float Charging) for rapid, efficient, and safe battery charging.
Figure 1-4Battery changing stage Curve
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
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