... derating1000...4000 m with derating3. FeaturesA) Charger: ABB Thyristor Power Converter, software Smart-Charger -2000 inside, with reversed ... battery monitoring)C) High reliability, long life, maintenance-free4. System Configuration:A) Charger: DCS800, ABB Thyristor Power Converter (German ABB original ... monitoring devices for battery and insulation. CE Approved High Voltage DC Power Supply (DCB500)