... DC (190-300V), DC cabinet, ac to dc power system 110V 220V DC Rectifier Module : Parameter 380V AC input, 220V DC output power module380V AC input, 110V DC ... display, and the clock will display correctly after power off.7. Battery management8. Communication interface RS485/ RS232, with ... single battery voltage, the battery standard voltage is 12V.2. detect 1 route battery ambient temperature.3. ...