Every Redback battery system comes with an inbuilt UPS. At the time of install you and your installer can determine which key appliances you would need in an outage and connect those circuits to your Redback system. In the event of a grid outage, your connected circuits will be powered by your solar panels or your batteries until the grid returns or there is no more solar or battery power available. Every Redback system has a maximum output for the backup circuit. Visit our page to find out more.