Apc Back-UPS PRO BR900MI

• Warning tones notify the user when the status of the power supply or UPS system changes.
• Periodic, automatic battery self-tests for timely replacement of depleted batteries.
• Automatic Voltage Regulation (AVR) gradually increases low voltage and reduces high voltage to a level suitable for your devices.
• Analyses for early detection of battery faults enable timely preventive maintenance.
• Tool-free battery replacement for quick and easy battery swaps.
• Battery-backed outputs and surge-protected outputs without battery support.
• Reserves capacity and transfer time for connected devices that need to switch to UPS battery operation in an emergency. This protects only less critical devices from surges.

Automatic Voltage Regulation (AVR) with Boost and Trim function increases UPS availability by correcting over- and under-voltages without using the battery.
Supports cold start for temporary battery operation when the mains power fails.
Surge protection devices to protect connected devices from surges on data lines.
Notification for disconnected battery that is not available for power supply.
Patent-pending Green Operating Mode, in which unused electrical components are switched off under good power supply conditions, achieving very high operational efficiency without compromising safety.
Hot-swappable batteries for uninterrupted power supply to protect systems during a battery change.
LCD graphic display showing operating modes, system parameters, and alarms in the form of text and overview diagrams.
USB interface for managing the UPS via the USB port.
User-replaceable batteries for availability and reduced mean repair time.