APC UPS BE850M2 850VA UPS Battery Backup & Surge Protector

In this review of the APC UPS BE850M2 the bottom line is simple: this unit is aimed at home offices and small businesses that need compact, reliable power protection for routers, modems, desktop PCs and peripherals. The single biggest reason to buy is the balance of useful runtime and integrated conveniences - it provides 850VA / 450W backup power, two USB charging ports, and a mix of battery-backed and surge-only outlets in a compact, wall-mountable package. It is not a solution for long-term server racks, but it covers essential devices during brief outages and protects against surges.

Key Features

• 850VA / 450W Backup: Provides short-term runtime to save work and safely shut down sensitive equipment during outages.
• Nine Outlets: Six battery-backed outlets keep critical devices online while three surge-only outlets protect secondary gear without using battery capacity.
• Two USB Charger Ports: Shared 2.4A ports let you charge phones or charge low-power devices without occupying an AC outlet.
• Wall-mountable Design: A compact footprint and a right-angle plug allow easy installation behind desks or on walls in constrained spaces.
• PC Power-management Software: Includes free Windows software for orderly shutdowns; Mac users can use native Energy Saver settings.
• Warranty and Coverage: Backed by a 3-year warranty and a $75,000 connected-equipment policy for added peace of mind.

Who It's For

The APC BE850M2 is best for users who need dependable short-term backup for a home office, single desktop workstation, networking gear, or entertainment components. Small business owners who want a simple, easy-to-install UPS with software-controlled shutdown on Windows will appreciate the mix of outlets and USB charging.

It is less suited to environments that require extended runtime for multiple servers or high-draw equipment beyond 450W, or for buyers who cannot tolerate occasional audible alarms; customers who need long-duration enterprise redundancy should look at larger UPS models.

Pros & Cons

Pros

• Compact, wall-mountable design that fits tight spaces and includes a right-angle 3-prong plug.
• Useful outlet mix with six battery-backed plus three surge-only outlets for prioritized protection.
• Includes free Windows power-management software and two USB charging ports for extra convenience.
• Backed by a 3-year warranty and a $75,000 connected-equipment policy.

Cons

• Some customers report inconsistent battery longevity and occasional frequent alarm beeping, so battery performance can vary.
• Not intended for high-wattage loads or long runtime beyond what 850VA / 450W can support.

Specifications

Our Verdict

The APC BE850M2 is a practical, value-oriented UPS for home and small office use, offering a sensible mix of battery-backed and surge-only outlets, USB charging, and Windows shutdown software. Buyers who need short-duration protection for a desktop, modem/router, and peripherals will find it a good option; those needing extended runtime or guaranteed long-term battery consistency should consider larger units or monitoring battery condition regularly.

Frequently Asked Questions

Can this UPS charge phones?
Yes. The unit has two USB charger ports with a shared 2.4A output for charging phones and small devices.

Is the battery replaceable?
Yes. APC replacement battery part No. RBC17 is sold separately and allows you to restore runtime when the battery ages.

Does it include software for safe shutdown?
It includes free Windows PC power-management software; Mac users should use the native Energy Saver settings for similar behavior.