PWM solar charge controller with 4-step PWM charging algorithm. Thanks to the graphic LCD display, we can view the operating parameters of the system with the possibility of setting 4 parameters, as well as setting the value of the resting charge voltage - this is a very appreciated feature that is rarely found in controllers of this class. Product features Adjustable battery cut-off (LVD) and recovery (LVR) voltage Adjustable load operation modes: simple On. On and Off, permanent switching, twilight switching and 1 ~ 23h operation, dusk ~ dawn operation Setting the output voltage to the load For lead acid flooded (FLD), sealed (SLD / AGM) and gel (GEL) batteries Reverse current protection with a double MOSFET circuit ensures that heat losses are minimized The used industrial-grade microprocessor, high efficiency (low own losses) allow for operation in the extreme temperature range -35 ℃ ~ +60 ℃ Protection against overcharge, discharge, overload, short circuit, reverse connection of the battery and PV panels Technical data System voltage: 12 / 24V auto Charging rated current: 30A Max PV input voltage: 50V Max power of PV panels: 390W (12V); 780W (24V) Over-voltage protection: (12V) - 16V / (24V) - 30V Idle current: 10mA Battery type selection: FLD, SLD / AGM, GEL (SLD default) Charging modes: 4-stage PWM (accumulative, absorption, rest, equalizing) Absorption Charge Voltage: 14.4V (SLD); 14.2V (GEL); 14.6V (FLD) Standby charging voltage: 13.7V-default, (settable); x2 (24V) Return voltage (LVR): 12.6V-default, (settable); x2 (24V) Cut-off voltage (LVD): 10.7V-default, (settable); x2 (24V) USB terminal: 5V 2A Working temperature: -35 ℃ ~ +60 ℃ Dimensions (W x D x H): 133 x 31 x 70 mm Weight: 120g https://elecena.pl/product/22622769/pwm-solar-charge-controller-30a-12-24v-lcd-display-2x-usb-port 2023-02-23 https://elecena.pl/product/22622769/pwm-solar-charge-controller-30a-12-24v-lcd-display-2x-usb-port 2023-04-06 https://elecena.pl/product/22622769/pwm-solar-charge-controller-30a-12-24v-lcd-display-2x-usb-port 2025-10-26 https://elecena.pl/product/22622769/pwm-solar-charge-controller-30a-12-24v-lcd-display-2x-usb-port 2025-10-28