CNS 61558-1: Taiwan’s BSMI Rolls Out New Standard for Battery Chargers and UPS Devices
Overview: Battery Charger and UPS Inspection On September 8, 2026, Taiwan’s BSMI adopted CNS 61558-1, a new standard harmonized with international IEC 61558-1, replacing the prior domestic basis for testing battery chargers and related electrostatic converters. This conversion path is available for both the battery charger category and the UPS/switching power supply category: manufacturers already…