Victron Energy BlueSolar PWM-LCD-USB 48V 20A

The BlueSolar PWM-LCD&USB features a Liquid Crystal Display, two 5-Volt USB outputs, a fully programmable lighting control function, and three-stage battery charging (bulk, absorption, float). It has a load output with low voltage and manual disconnect (programmable), protection against overload and short circuit, and reverse polarity protection for the solar panels and/or battery. The BlueSolar PWM DUO-LCD&USB includes all these functions, plus the ability to charge two separate batteries, a programmable charge current ratio, and an external temperature sensor.