APC BK650EI – 650 VA Standby UPS 230 V / 400 W

Overview

The APC BK650EI is a standby (offline) uninterruptible power supply (UPS) designed to provide temporary AC continuity and surge protection for networking equipment, workstations, storage, and small office electronics operating on 230 V mains. It’s typically deployed by IT technicians and facilities support personnel to prevent data loss and maintain orderly shutdown during short utility outages, brownouts, or voltage transients.

This UPS delivers up to 650 VA (400 W) of apparent and effective power, engaging its internal battery automatically when incoming utility voltage falls outside defined thresholds. The unit uses standby topology with an effective transfer time in the 6 – 10 ms range to sustain loads when mains fails.

Output receptacles consist of a mix of battery‑backup plus surge‑protected outlets and surge‑only outlets arranged to segregate critical and non‑critical loads. An integrated USB interface and LED indicators provide basic status reporting on power and battery conditions.

The internal maintenance‑free sealed lead‑acid battery charges automatically when utility power is present and supports multiple minutes of runtime depending on load level (e.g., ~14–15 min at ~100 W; ~4–5 min at full load). Recharge to full capacity typically requires ~8 hours following deep discharge.

This UPS is a compact tower form factor made for indoor use. It does not generate AC power independently but supplements mains supply to keep connected devices running briefly during outages and provides surge suppression against line disturbances.

Key Features

• 650 VA / 400 W standby UPS for 230 V mains
• Mixed battery‑backup plus surge outlets for load segmentation
• Sealed lead‑acid maintenance‑free battery
• USB interface and LED status indicators
• Typical runtime up to ~14 min at light load

Specifications