The Dynamode 500va UPS houses a powerful 500VA maintenance free battery which constantly supplies clean power to all attached devices, filtering out common (and not so common) power faults such as brown outs, spikes, transients and complete power failure.
 By automatically switching to it’s built-in rechargeable battery in less than 10 microseconds you’ll be notified visually and audibly that your running on battery power, giving you on average between 5~15 minutes run-time*, more than enough to backup your files and shutdown the system.