Skip to content
sudopicks
esc

CyberPower CP1500EPFCLCD vs Eaton 3S Gen2 UPS 3S550B

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

all judged against UPS units at a similar price

The CyberPower CP1500EPFCLCD scores 6.2/10 overall, ahead of the Eaton 3S Gen2 UPS 3S550B at 5.6/10.

The CyberPower CP1500EPFCLCD leads on topology and waveform and capacity.

The Eaton 3S Gen2 UPS 3S550B leads on NAS and server integration and UK outlets and build.

They score the same on runtime and battery.

The biggest difference is topology and waveform, where the CyberPower CP1500EPFCLCD scores 8/10 to the Eaton 3S Gen2 UPS 3S550B's 4/10.

CyberPower CP1500EPFCLCD

6.2/10verdict: good, not the best

The CyberPower CP1500EPFCLCD suits people protecting a desktop PC or a small NAS, router and switch stack from short mains outages. Its headline specs are a 900W rating and pure sine wave output on battery. It is a weaker fit for anyone who needs confirmed automatic NAS shutdown or long runtime at heavy load.

Typically about £390 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

Eaton 3S Gen2 UPS 3S550B

5.6/10verdict: good, not the best

The Eaton 3S Gen2 3S550B is a small standby UPS for a home desk or a compact homelab. It suits someone protecting a NAS, router and switch who wants USB-triggered shutdown and a user-replaceable battery. It doesn't suit anyone who needs a confirmed waveform, a published runtime or network management.

Typically about £83.99 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

Scores, criterion by criterion

CriterionWeightCyberPower CP1500EPFCLCDEaton 3S Gen2 UPS 3S550B
Topology and waveform25%8/104/10
NAS and server integration25%5/107/10
Capacity20%8/106/10
Runtime and battery15%5/105/10
UK outlets and build15%4/106/10
Overall6.2/105.6/10

Specifications

SpecCyberPower CP1500EPFCLCDEaton 3S Gen2 UPS 3S550B
Capacity (VA / W)1500 VA / 900 W550 VA / 330 W
TopologyLine-interactiveOffline/Standby
Output waveformPure sine wave on batterynot listed
OutletsSchuko x 66 UK outlets: 3 with battery backup and surge protection, 3 surge-only
Runtime at half load10 minutes at half loadnot listed
USB / network managementUSB charging ports, PowerPanel management software listed; USB data cable in box. Network management and USB HID not confirmed.USB port (HID-compliant), Eaton UPS Companion software, auto shutdown function; no Ethernet or network card
Batterynot listed12 V / 5 Ah sealed VRLA, one battery, user replaceable

Strengths and weaknesses

CyberPower CP1500EPFCLCD

  • + Rated at 1500VA and 900W
  • + Pure sine wave output on battery
  • + Line-interactive design with automatic voltage regulation
  • − Full-load runtime reported as only a couple of minutes
  • − Listed outlets are Schuko; UK SKU is separate

Skip it if:

  • Buyers who need confirmed USB HID for automatic NAS shutdown
  • Anyone needing long runtime at heavy load
  • Buyers who need online double-conversion protection
Read the full CyberPower CP1500EPFCLCD review ›

Eaton 3S Gen2 UPS 3S550B

  • + USB port is HID-compliant, with automatic shutdown support
  • + Battery is a single user-replaceable sealed unit
  • + Six UK outlets, three of them with battery backup
  • − Half-load runtime isn't published by the manufacturer
  • − No Ethernet port or network card

Skip it if:

  • Buyers who need a confirmed pure sine wave output
  • Anyone needing network-card monitoring for several servers
  • Users who need a published runtime figure before buying
Read the full Eaton 3S Gen2 UPS 3S550B review ›

More comparisons

Compare all UPS units · Best UPS units