Highlights Output: 850VA/510W 2X universal socket Wave Form Battery Mode (Simulated Sine Wave) AC Mode (Synchronize with Input) Mercury 850VA UPS comes with one 12V 9AH battery UK POWER CORD Mercury 850VA ups Backup Time Typical 15mins~25mins (Depending On Load) Line Mode: 110%±5% (go to fault mode after 5 minutes) 120%±5% (go to fault mode immediately) Battery Mode 85%±5% (Shut down after 5 seconds) 100%±5% (shut down immediately)