APC Back-UPS Pro BX850M
The APC Back-UPS Pro BX850M is a compact tower Uninterruptible Power Supply designed to provide reliable battery backup and surge protection for your essential electronics. It keeps critical devices running during outages, allowing you to save work or maintain network connectivity. Ideal for PCs, home office setups, and gaming consoles, this unit features Automatic Voltage Regulation (AVR) to correct power fluctuations instantly. It offers 8 outlets, an intuitive LCD display for status monitoring, and includes PowerChute software for safe system shutdown.
$161.99
Owner Satisfaction
4.4
/ 5
Category Rank
541
/ 868
#541 in UPS
Price vs Category Average
-90%
Below average
Capacity
850510
/ VA / W
Who it's for
- Essential Power Protection
- Built-in Voltage Stability
- Practical Home Office Design
Who should skip it
- Stepped Approximation Output
- Moderate Wattage Capacity
- Potential for Fan Noise
Key Specs
Capacity
850 VA / 510 W
Topology
Line-Interactive
Output Waveform
Stepped Approximated Sine Wave
Outlets
8 NEMA 5-15R (4 Battery Backed)
Recharge Time
12 Hours
Runtime at Full Load
2 Minutes
Communication Ports
1 USB, 1 Serial (RS-232)
Input Voltage
120 V
Features
- Compact tower design for easy placement
- Instantly corrects high/low voltage fluctuations
- LCD display for clear status monitoring
- Audible alarms with mute function
- Includes PowerChute management software
- Seamless battery power to connected devices
- Smaller and lighter than comparable models
- Provides clean battery backup and surge protection
What customers say
The APC Back-UPS Pro BX850M earns strong praise for its exceptional reliability and robust protection of electronics. Users value the 850VA capacity and Automatic Voltage Regulation for stabilizing power and extending battery life. The clear front LCD screen significantly boosts confidence by providing real time load and runtime data. While the hardware quality is excellent, some users note a minor fan or transformer hum in quiet settings. Overall, the overwhelming consensus confirms this unit delivers superior peace of mind, making its value clear despite a slightly premium cost. This device is an essential tool for home and small office security.
Still have a question?
Ask Hayley anything about this product before you decide.