APC Back-UPS 850, Compact Tower (BX850M)
850VA, 120V, AVR, LCD, 8 NEMA outlets (4 surge).
- Specs: Capacity: 850 VA | Topology: Line Interactive | Outlets: 4 NEMA5-15R|4 NEMA5-15Rsurge
- Includes:
Better pricing available. Our experts can help you secure the lowest rate on this model. Talk to an expert →
Request a Quote- Fast shipping — same-day processing before 4:15 pm PST
- Authorized Reseller — Serving customers 20+ years
- Call for Bulk Pricing
Our Price: $209.99
APC Back-UPS 850, Compact Tower, 850VA, 120V, AVR, LCD, 8 NEMA outlets (4 surge)
The BX850M provides robust, reliable power continuity for demanding edge computing and network closets. Operating as a line interactive UPS, it guarantees up to 850 VA of clean, uninterrupted backup power during outages. Equipped with 4 NEMA5-15R|4 NEMA5-15Rsurge, it ensures all your connected hardware remains online and shielded from catastrophic surges. The system operates on a nominal input voltage of 120 V AC 1 phase.
Key Features
- LCD graphics display-Text and mimic diagrams that display modes of operation, system parameters and alarms.
- Battery replacement without tools-Enables fast battery replacement, lowering Mean Time to Repair (MTTR).
- Battery and surge protected outlets-Back up and protect your hardware and data during power outages, surges and spikes.
- Resettable circuit breaker-Easy recovery from overloads; no need to replace a fuse. (Not available on Wall Tap SKUs)
- Transformer Block Spacing-Connect bulky transformer block plugs without covering up other outlets.
- Disconnected battery notification-Warns when a battery is not available to provide backup power.
- Audible alarms-Provides notification of changing utility power and UPS power conditions
- Automatic self-test-Periodic battery self-test ensures early detection of a battery that needs to be replaced.
- Boost Automatic Voltage Regulation (AVR)-Preserves battery life and maximizes runtime by correcting low voltages without discharging the battery.
- Cold-start capable-Provides temporary battery power when the utility power is out.
- Dataline surge protection-Provides protection of connected equipment from power surges on the data lines.
- Hot-swappable batteries-Ensures clean, uninterrupted power to protected equipment while batteries are being replaced
- Lifetime data recovery warranty-Provides peace of mind by providing professional data recovery services in the event data is lost due to the failure of the unit.
- Battery failure notification-Provides early-warning fault analysis on batteries enabling timely preventive maintenance
- Safety-agency approved-Ensures the product has been tested and approved to work safely with the connected service provider equipment and within the specified environment.
- USB connectivity-Provides management of the UPS via a USB port (not available on all models).
- User-replaceable batteries-Increases availability by allowing a trained user to perform upgrades and replacements of the batteries reducing Mean Time to Repair (MTTR)
- Building Wiring Fault Indicator-This LED informs users of potentially dangerous wiring problems in the wall circuit.
- Intelligent battery management-Maximizes battery performance, life, and reliability through intelligent, precision charging.
Ideal Applications
Part of the highly regarded APC Back-UPS Pro series, the BX850M is expertly engineered for Home & Office Electronics applications. It delivers ironclad, reliable performance specifically tailored for Uninterruptible Power Supply (UPS) deployments.
Features & Benefits
Explore the technical advantages and comprehensive protection policies that make the BX850M a rock-solid choice for your infrastructure.
Features and Benefits for BX850M
Protect computers, wireless routers, IOT devices, and security systems with the APC Back-UPS Pro Compact 850VA.
- APC Back-UPS Pro Compact provide backup battery power during power outages and continuously safeguard devices from fluctuating power conditions and surges.
- This compact tower UPS is designed for workstations, monitors and network devices.
- Automatic Voltage Regulation (AVR) instantly corrects high/low voltage fluctuations so connected devices receive consistent power.
- The APC compact tower UPS is significantly smaller and lighter than other tower models, allowing for convenient use and installation while still providing quality power protection.
- With 8 outlets, this desktop UPS (uninterruptible power supply) provides seamless battery power to connected electronics.
- The 510w capacity is ideal for workstations and additional electronics, keeping you connected and productive during power fluctuations.
- Use the three soft-touch buttons on the front to easily configure settings.
- Included PowerChute software is available to set up automatic graceful shutdown of a connected PC in the event of an extended power outage.
- Audible alarms provide notification of changing utility power and UPS conditions.
- Audible alarms can be muted.
- The LCD Display provides details concerning power-load of connected devices, battery runtime based on connected devices, the power level of the battery and more.
- 2 RJ-45 data ports are in the back to protect DSL, modem or fax lines from potentially harmful power surges.
- 2 coaxial ports are also in the back of the UPS for additional protection.
- This computer backup offers lifetime guaranteed surge protection with a $250,000 equipment protection policy.
- Package Contains UPS, USB cable and user manual
Protection & Warranty
Equipment Protection Policy
Lifetime : $250000
Hardware Specifications
Comprehensive physical, electrical, and environmental data for the BX850M to ensure compatibility with your deployment.
General
Power & Surge
Battery
Physical
Compare Similar Models
See how the BX850M stacks up against other models in the APC Back-UPS Pro series.




Documentation & Compliance
Access user manuals, datasheets, and environmental profiles for the BX850M.


