RECHARGEABLE ELECTRIC BATTERIES; BATTERY CHARGERS; ELECTRIC INVERTERS; VOLTAGE SURGE PROTECTORS; ELECTRIC SWITCHES; VOLTAGE REGULATORS FOR ELECTRIC POWER IN VEHICLES; STATIC VOLTAGE REGULATORS; UNINTERRUPTIBLE POWER SUPPLY UNITS FOR USE IN POWER FAILURE SITUATIONS; UNINTERRUPTIBLE POWER SUPPLIES FOR CONDUCTION OF ELECTRICAL ENERGY; UNINTERRUPTIBLE POWER SUPPLIES FOR THE STORAGE OF ELECTRICAL ENERGY; UNINTERRUPTIBLE POWER SUPPLIES FOR THE TRANSFORMATION OF ELECTRICAL ENERGY; UNINTERRUPTIBLE PO...