JNGE Power JN-MPPT User Manual

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utilization rate of the energy by 15% ~ 20% (due to the influence of the environment and all kinds of
energy losses, concrete numerical value is likely to change).
Picture 1 MPPT maximum power point tracking curve
Due to different light conditions and temperature, the power of photovoltaic panels will have
corresponding change. MPPT will monitor the working state of the solar panels and adjust the
parameters constantly to keep the system working in the maximum power point.
A. As light is reduced, current decreases B. As temperature increases, the open circuit
voltage decreases
Picture 2 Solar panels changes with light and temperature curve
2. Charging status explaination
As one charging phase, MPPT charge cannot be used alone but need combining with improving
charge, floating charge and equalizing charge methods. When the controller starts to work, it will
estimates battery voltage. If the battery voltage is higher than “ascension back charge voltage”, the

JNGE Power JN-MPPT Specifications

General

Brand	JNGE Power
Model	JN-MPPT
Category	Controller
Language	English