Eaton 9PX 3000i RT2U Netpack Li-Ion. The 9PX lithium-ion UPS systems are characterized by an extended battery life of 8-10 years, compared to the usual 3-5 years for VRLA batteries. With its online double-conversion topology, the 9PX continuously monitors power quality and regulates both voltage and frequency. The internal bypass allows for continued operation even in the event of a device failure. A maintenance bypass is also available to facilitate easy replacement of the UPS. Smaller form factor: The size of the battery extension has been reduced to 1U. The graphical LCD display provides a quick overview of the UPS status and measurements. Enhanced configuration options are also available. The Energy Star-rated 9PX lithium-ion UPS helps reduce energy and cooling costs thanks to its outstanding efficiency. With the option for rack or tower installation, the 9PX represents the most compact solution with up to 3000 W in just 2U. All models come with the necessary hardware for tower or rack mounting.