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APC Back-UPS BE850G2-UK vs Eaton Ellipse PRO 850 IEC

Researched, not hands-on tested.How we review ›

all judged against UPS units at a similar price

The Eaton Ellipse PRO 850 IEC scores 6.7/10 overall, ahead of the APC Back-UPS BE850G2-UK at 5.4/10.

The APC Back-UPS BE850G2-UK leads on runtime and battery.

The Eaton Ellipse PRO 850 IEC leads on topology and waveform and NAS and server integration.

They score the same on capacity and UK outlets and build.

The biggest difference is NAS and server integration, where the Eaton Ellipse PRO 850 IEC scores 8/10 to the APC Back-UPS BE850G2-UK's 4/10.

APC Back-UPS BE850G2-UK

APC Back-UPS BE850G2-UK

5.4/10verdict: good, not the best

The APC Back-UPS BE850G2-UK suits a home office or small desk setup that needs battery backup for a PC, router and switch. It offers six battery-backed UK sockets and a published runtime table. Buyers who need confirmed NAS shutdown support or a pure sine output should check those points first.

Typically about £120 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Eaton Ellipse PRO 850 IEC

6.7/10verdict: buy

The Eaton Ellipse PRO 850 IEC suits anyone who wants to protect up to three devices from one spot and is happy with USB-only monitoring. It offers 510 W, a USB HID port with Eaton UPS Companion software and a user-replaceable battery. It is a poor fit for anyone who needs network-card management or long battery runtime.

Typically about £285.92 in the UK when we researched itSearch Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Scores, criterion by criterion

CriterionWeightAPC Back-UPS BE850G2-UKEaton Ellipse PRO 850 IEC
Topology and waveform25%4/106/10
NAS and server integration25%4/108/10
Capacity20%7/107/10
Runtime and battery15%6/105/10
UK outlets and build15%7/107/10
Overall5.4/106.7/10

Specifications

SpecAPC Back-UPS BE850G2-UKEaton Ellipse PRO 850 IEC
Capacity (VA / W)850 VA / 520 W850 VA / 510 W
TopologyStandbyLine-interactive
Output waveformStepped approximation to a sinewavenot listed
Outlets8 total: 6 battery-backed with surge protection and 2 surge-only, all BS 1363A UK sockets3 x C13 outlets plus 1 C13 surge-only outlet
Runtime at half load72 min at 50 W, 34.1 min at 100 W, 14.3 min at 200 W, 7.7 min at 300 W, 4.5 min at 400 W, 2.6 min at 500 W; no figure published at half load (260 W)9 min at half load
USB / network managementTwo USB charging ports (Type A 2.4 A and Type C); ships with PowerChute automatic shutdown software; RJ-45 port is dataline surge protection only; USB HID compatibility with NAS systems not verifiedUSB port (HID compliant) with Eaton UPS Companion software; no Ethernet or network card
BatteryOne sealed lead-acid battery, user-replaceable (RBC17 sold separately); expected life 2 to 5 years; typical recharge 16 hours12 V / 9 Ah VRLA sealed lead-acid, one battery, user replaceable

Strengths and weaknesses

APC Back-UPS BE850G2-UK

  • + Six battery-backed BS 1363A sockets plus two surge-only
  • + Runtime table published from 50 W to 500 W
  • + User-replaceable battery, with RBC17 sold separately
  • − Standby topology with stepped sinewave output
  • − Warranty length conflicts between manufacturer and retailers

Skip it if:

  • Homelabbers who need confirmed automatic shutdown with Synology, QNAP, TrueNAS or NUT.
  • Anyone powering heaters, laser printers or other high-wattage loads.
  • Buyers who want a pure sinewave output from their UPS.
Read the full APC Back-UPS BE850G2-UK review ›

Eaton Ellipse PRO 850 IEC

  • + 510 W rating with 97% efficiency at maximum load
  • + HID-compliant USB with Eaton UPS Companion software
  • + User-replaceable battery and three-year warranty
  • − 9 minutes at half load is short
  • − No Ethernet port or network card
  • − Only three battery-backed outlets

Skip it if:

  • Buyers who need network-card or Ethernet-based UPS management
  • Anyone needing more than a few minutes of runtime at moderate load
  • Users with more than three devices that all need battery backup
Read the full Eaton Ellipse PRO 850 IEC review ›

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