40 Amp 96V MPPT Solar Charge Controller

Note:

* If you need this controller for charging the lithium battery, please contact us in advance and provide us the parameters of your lithium battery including equalize charge voltage, float charge voltage, maximum charge current, end-of-discharge voltage, and recovery voltage, so as to help you choose a most suitable charger controller.

MPPT Solar Charge Cotroller User Manual

What are the three-stage charging modes of the MPPT solar controller?

MPPT currently limits charging

• When the initial charging starts, when the battery terminal voltage of the system reaches a small value, the MPPT charging method is adopted, and the output power of the photovoltaic battery is drawn to the battery terminal. When the sunlight is strong, the output power of the photovoltaic cell is greatly increased, and when the charging current quickly reaches the threshold, the MPPT is stopped and transferred to the constant current charging mode of mppt solar charge controller.
• When the light intensity is weak and the constant current is difficult, it is transferred to the MPPT solar charger charging mode, so that it is freely switched until the battery terminal voltage rises to reach the saturation voltage Ur, and the battery enters the constant voltage charging phase. Through the cooperation and automatic switching of the MPPT charging mode and the constant current charging mode, solar energy can be fully utilized to quickly charge the battery.

Constant voltage current limiting charging

• At this stage, the mppt solar regulator charging voltage value is always Ur, and the charging current gradually decreases as the electrochemical reaction inside the battery progresses. When the MPPT solar controller charging current drops to about 0.01 C, the constant voltage charging is terminated, and the floating charging phase is entered. Current limiting treatment is also performed during the constant voltage phase to protect the battery.
  Floating charge
• The battery is floated with a voltage Uf slightly smaller than the constant voltage. This stage is mainly used to supplement the energy consumed by the battery self-discharge, which indicates the end of the charging process.