Since the batteries in our online UPS system are linked directly to the inverter, it supplies power to the load via the battery. The presence of an online UPS eliminates the necessity for a power switch for our online UPS system. When the power source fails, the UPS continues to supply electricity to the load using the current drawn from the batteries. A UPS maintains the electricity running in the event that your usual power supply fails or the voltage falls below a safe level, allowing you to securely tend to your valuable assets.