Researched, not hands-on tested.How we review ›
all judged against UPS units at a similar priceThe Eaton Ellipse PRO 850 IEC scores 6.7/10 overall, ahead of the APC Back-UPS BE650G2-UK at 5.3/10.
The Eaton Ellipse PRO 850 IEC leads on topology and waveform, NAS and server integration and capacity.
They score the same on runtime and battery 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 BE650G2-UK's 5/10.
This is a compact standby UPS for a home office or small homelab with a NAS, router and switch. It suits buyers who want UK sockets, a user-replaceable battery and a USB link for a clean shutdown. It is not aimed at long outages or heavy loads.
Typically about £99.99 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
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 itCheck price at Amazon UK (opens in a new tab, affiliate link)Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details
| Criterion | Weight | APC Back-UPS BE650G2-UK | Eaton Ellipse PRO 850 IEC |
|---|---|---|---|
| Topology and waveform | 25% | 4/10 | 6/10 |
| NAS and server integration | 25% | 5/10 | 8/10 |
| Capacity | 20% | 6/10 | 7/10 |
| Runtime and battery | 15% | 5/10 | 5/10 |
| UK outlets and build | 15% | 7/10 | 7/10 |
| Overall | 5.3/10 | 6.7/10 |
| Spec | APC Back-UPS BE650G2-UK | Eaton Ellipse PRO 850 IEC |
|---|---|---|
| Capacity (VA / W) | 650 VA / 400 W | 850 VA / 510 W |
| Topology | Standby (offline), per distributor and retailer pages; not stated on APC pages | Line-interactive |
| Outlets | 8 total: 6 battery backup and surge protection, 2 surge protection only; BS 1363 (UK) | 3 x C13 outlets plus 1 C13 surge-only outlet |
| Runtime at half load | not listed | 9 min at half load |
| USB / network management | USB Type A port; no network card listed | USB port (HID compliant) with Eaton UPS Companion software; no Ethernet or network card |
| Battery | Sealed lead-acid, user-replaceable; RBC quantity 1 | 12 V / 9 Ah VRLA sealed lead-acid, one battery, user replaceable |
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