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APC UPS 850VA/450W UPS Battery Backup & Surge Protector for PC, Router, NAS | Back-UPS UPS battery backup for home office electronics — 35-min runtime, surge protection, dual USB-A charging port
APC

APC UPS 850VA/450W UPS Battery Backup & Surge Protector for PC

Bottom line: The APC UPS 850VA/450W UPS Battery Backup & Surge Protector for PC ($137.99 on Amazon as of 2026-10-20 22:16 UTC): Up to 35 min of runtime at 100W - room to save work and shut down cleanly; main trade-off: 450W ceiling rules out gaming desktops with high-draw GPUs.

$137.99

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Up to 35 min of runtime at 100W - room to save work and shut down cleanly
  • ✓ 9 outlets total: 6 battery-backup plus surge, 3 surge-only for printers and monitors
  • ✓ 2 USB-A ports share 5V/2.4A, so charging doesn't cost you a protected outlet
  • ✓ User-replaceable RBC17 battery swaps in minutes, no technician call
  • ✓ 3-year warranty plus APC connected-equipment protection

Cons

  • ✗ 450W ceiling rules out gaming desktops with high-draw GPUs
  • ✗ 35-min figure assumes a 100W load; heavier loads cut runtime sharply
  • ✗ Replacement RBC17 battery is sold separately, an added cost at end of life
  • ✗ Only 6 of the 9 outlets are battery-backed, so placement matters

Manufacturer description

The APC Back-UPS BE850G2 is a 850VA/450W battery backup built for the always-on corner of a home office: desktop, router, modem, and NAS. When utility power drops, the unit carries a 100W load for up to 35 minutes, which is enough runtime to save open work, close a database cleanly, or simply ride out the brownouts and flickers that corrupt NAS volumes and force ugly filesystem checks on reboot. Nine NEMA outlets split the job sensibly: six give you full battery backup plus surge protection for the gear that cannot lose power, while three surge-only outlets absorb printers and secondary…

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SpecPicks Verdict

SpecPicks scored APC UPS 850VA/450W UPS Battery Backup & Surge Protector for PC using a rating × review-volume × price-fit model applied to published specs and reviews across the power protection category. APC's power protection lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power protection of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How long will the APC BE850G2 run my equipment during an outage?

APC rates it at up to 35 minutes of runtime with a 100W load. A heavier draw shortens that proportionally, so size your connected gear against the 450W output ceiling.

Can this UPS run a gaming PC?

It is rated 850VA/450W, which suits a desktop, monitor, router, modem, and NAS. A gaming rig with a high-draw GPU can exceed 450W under load, so check your system's actual wattage first.

How many outlets does it have, and are they all battery-backed?

Nine NEMA outlets: six are battery-backup plus surge, and three are surge-only. Put your PC, router, modem, and NAS on the battery side and printers or extra monitors on the surge-only side.

Can I charge my phone from it?

Yes. Two USB-A ports share 5V/2.4A, so you can charge a phone or tablet without giving up one of the nine protected outlets. There is no USB-C port.

What happens when the battery wears out?

The battery is user-replaceable in minutes with no technician needed. The replacement model is RBC17, sold separately. The unit is backed by a 3-year warranty plus APC's equipment protection for connected devices.

Key Features

  • KEEP WORKING WHEN THE POWER GOES OUT: 850VA/450W provide up to 35 minutes of runtime at 100W to save work, shut down safely, or ride out short outages. Protect desktops, monitors, NAS, & modems from data-corrupting power cuts
  • PROTECTS YOUR WHOLE HOME OFFICE SETUP: Battery backup keeps your computer, router, modem, NAS, and smart home gear running during outages. Surge-only outlets handle printers and monitors. One unit, entire workspace covered
  • 9 OUTLETS + 2 USB-A CHARGING PORTS: 6 battery-backup and 3 surge-only NEMA outlets, plus 2 USB-A ports (5V/2.4A shared) to charge phones and tablets without sacrificing a protected outlet
  • EASY TO MONITOR, EASY TO MAINTAIN: Silenceable alarm and LED indicators give instant status at a glance. Battery is User-replaceable in minutes - no technician needed. Replacement battery model RBC17 (sold separately)
  • 3 YEAR WARRANTY + ENHANCED PROTECTION FOR CONNECTED ELECTRONICS: Supported by a 3Year Warranty, plus Equipment Protection for enhanced coverage of connected devices, providing added assurance against powerrelated damage

Full Specifications

BrandAPC
ColorBlack
Runtime2 minutes
Voltage850 volts
Wattage450 watts
Amperage2.4
Unit Count1 Count
Form FactorTower
ConnectivityUSB
Model NumberBE850G2
CompatibilityPC
Input Voltage120 volts
Maximum Power450 watts
Connector TypeNEMA
Item Type NameUninterruptible Power Supply UPS
Output Current2.4 A
Output Voltage850 volts
Output Wattage450 watts
Item Dimensions12.87 x 4.13 x 5.47 inches
Mfr Part NumberBE850G2
Full listing titleAPC UPS 850VA/450W UPS Battery Backup & Surge Protector for PC, Router, NAS | Back-UPS UPS battery backup for home office electronics — 35-min runtime, surge protection, dual USB-A charging port

Ready to buy?

APC UPS 850VA/450W UPS Battery Backup & Surge Protector for PC, Router, NAS | Back-UPS UPS battery backup for home office electronics — 35-min runtime, surge protection, dual USB-A charging port is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $137.99

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

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APC UPS 850VA/450W UPS Battery Backup & Surge Protector for PC, Router, NAS | Back-UPS UPS battery backup for home office electronics — 35-min runtime, surge protection, dual USB-A charging port
$137.99
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