Battery Charging Stage - Epever Tracer 4215BN User Manual

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

1.4 Battery Charging Stage

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