EcoFlow DELTA 2
Top PickWhat We Like
- Fully recharges in less than 50 minutes
- LiFePO4 battery lasts through thousands of cycles, making it a long-term investment.
- Expandable up to 3kWh with add-on battery for longer runtime.
- Powers essential appliances like fridges, lights, and routers without issue.
- Solid build quality and clean design fit well in any indoor or outdoor setting.
Worth Noting
- At 27 lb, weight becomes noticeable if you move it frequently between locations.
- Occasional AC output shutdowns have been reported even when not overloaded
- AC Output
- 1800W cont, 2200W surge
- Expandability
- Up to 3kWh
- Recharge Time
- 50 min to 80%
- Battery Capacity
- 1024Wh
The Delta 2 refuels from a wall outlet in under 50 minutes — fast enough to top up between grid outages. Its 1024Wh LiFePO4 battery is rated for over 3000 full cycles, meaning this station should outlast lead-acid alternatives by years. Continuous output sits at 1800W with a 2200W surge, enough to start most refrigerators and run lights, routers, and small electronics simultaneously.
Expandability is the Delta 2's hidden advantage: snap on an extra battery to reach up to 3kWh, scaling from a day of backup to two or three. The lithium iron phosphate chemistry also tolerates partial discharges better than standard lithium-ion, so you don't need to drain it fully every cycle to maintain health. For buyers who plan to keep a backup unit for years, this chemistry alone justifies the mid-range price.
In use, the station powers a typical home backup load without complaint — a fridge, a few lights, a router, and phone charging. The UPS mode switches in under 30ms, which is fine for most electronics but not instantaneous enough for sensitive desktop computers; a dedicated UPS is safer there. A small number of units have been noted to cut AC output without an overload trigger, so it's worth testing the unit under load soon after purchase.
This station fits best in households that want a single backup unit for essential circuits or occasional off-grid trips. The 27 lb weight is manageable for carrying from garage to living room but not for hiking; it lives well in a fixed spot near the breaker panel. If you need whole-house coverage without expansion, consider a larger station. For the vast majority of home backup and camping uses, the Delta 2's blend of speed, capacity, and longevity is hard to beat.
Tip: Test the unit under your typical load soon after purchase to confirm consistent AC output; most units perform without issue, but this check can avoid surprises.
Bottom line: The Delta 2 is the most balanced option in its class for anyone who needs fast turnaround, room to grow, and a battery that will hold up for years.