... . Main Features: •TRUE ON LINE DOUBLE CONVERSION Technology•100% microcontrolled by DSP•N + 1, parallel and redundant ... •High efficiency > 92% •Dual Input (optional)•100% unbalanced load allowed•Cold start function•Smart battery control function ... battery exhausted, low output voltage, high output voltage, DC fuse open, %v power supply fail, 13.5 v power supply fail, inverter overvoltage, ...