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The E-Smart series MPPT controller is an intelligent solar charge controller with the function of automatic recognition of the battery system, for intelligent charging and discharging of the battery, three-stage battery charging function. The controller finds application in various solar photovoltaic systems. It can increase the efficiency from 30% to 60% compared to the traditional PWM controller. The solar controller supports different types of batteries, and has a built-in RS485 communication port that allows setting and monitoring of various parameters using a computer and a WiFi module. Suitable for battery systems of 12V/24V/36V/48V, automatic recognition. Maximum input voltage from the solar panels 130V for the 20, 30 and 40 amp models and 150V for the 50 and 60 amp models.