One of the key advantages of an online UPS is its ability to provide uninterrupted power even during blackouts, as there's no transition time needed to switch from mains power to battery power. This uninterrupted power supply ensures that critical operations remain unaffected, minimizing downtime and potential data loss.

Overall, online UPS systems offer robust power protection, ensuring the continuous operation of essential equipment and safeguarding against the damaging effects of power disturbances.