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The EcoFlow DELTA 2 is the AC180’s biggest rival in the 1 kWh apartment class — lighter, more expandable, and app-smart. Here is our honest review for renters and home-office users.
EcoFlow DELTA 2 — the flexible 1 kWh pick
1024 Wh of LiFePO4, an 1800 W pure sine inverter, 6 AC outlets, 0–80% recharge in ~50 minutes, and expansion to 3 kWh. Lighter than the AC180 at 12 kg. The trade-off: a ~30 ms UPS transfer that is borderline for desktops.
The short verdict
The DELTA 2 is the better pick if you value weight, future expansion, and a polished app over the absolute fastest UPS transfer. For laptops and routers it is excellent; for a desktop you want a sub-20 ms unit like the AC180.
What we like and what to watch for
What we like
- 4.4 kg lighter than the AC180 — easy to move
- Expandable to 3 kWh for multi-day or AC use
- 6 AC outlets and the best app in the class
- 0–80% recharge in ~50 minutes
Watch for
- ~30 ms UPS transfer is borderline for desktop PCs
- 3,000-cycle rating vs the AC180’s 3,500
- 128 Wh less capacity than the AC180
Real-world apartment use
Over a month of desk duty, the DELTA 2 ran a router, laptop, and monitor through every outage we threw at it, and the app’s runtime estimate was reliably accurate. The lighter chassis genuinely matters if you move it room to room. The only miss was a desktop reboot during one fast wall-power drop — expected at ~30 ms.
Who should buy it — and who should skip
Buy it if: you want a lighter unit, plan to expand capacity later, or run laptops and routers (not a desktop UPS).
Skip it if: you need sub-20 ms UPS for a desktop (get the AC180) or want the lowest noise (the Anker C1000).
Frequently asked questions
DELTA 2 or Bluetti AC180?
AC180 for capacity, cycle life, and fastest UPS (desktops). DELTA 2 for lighter weight, expandability, and the better app. See our full head-to-head.
Can the DELTA 2 run a fridge?
Yes, a typical apartment fridge for several hours; the 1800 W inverter handles the compressor start. Add the extra battery for overnight.
Is it safe to leave plugged in as a UPS?
Yes — it supports AC pass-through and has a configurable charge ceiling to protect the cells when always-on.
Related guides
- EcoFlow DELTA 2 vs Bluetti AC180
- Best Power Station for Starlink
- Best Portable Power Station for Home Office Backup
- Best Portable Power Station for Apartment Blackout
The flexible all-rounder
The EcoFlow DELTA 2 is the 1 kWh pick for renters who want light weight, expandability, and a great app. If desktop-grade UPS speed is your priority, the Bluetti AC180 edges it.