PPT91 UPS provides double conversion online power for light industrial applications, point of sale, servers, voice & data networks, and laboratories. PPT91 features unity output power factor to support up to 43% more critical loads than typical UPSs. Extended battery runtimes are available from the PPT91 by adding up to seven matching battery packs. PPT91 battery charger can be programmed to provide up to 8 amps of recharge current to insure batteries are recharged quickly and prepared for the next utility outage.