Heavy 2.5kWh+
EcoFlow DELTA 3 Ultra portable power station
EcoFlow

EcoFlow DELTA 3 Ultra

The EcoFlow DELTA 3 Ultra is a 3,072Wh LiFePO4 portable power station with 3,600W continuous AC output and 7,200W surge—positioned for home backup, RV use, camping accessories, emergencies, and off-grid power. EcoFlow cites X-Quiet 3.0 inverter behavior for strong everyday appliance support (fridges, microwaves, heaters, power tools, and similar loads). A sub-10ms UPS-style switchover is marketed for keeping PCs, Wi-Fi routers, and sensitive/medical-class gear online without manual setup. Noise is positioned around 25 dB under load for apartment- and RV-friendly overnight use. Four charging paths are highlighted: wall outlet, solar, vehicle input, and EcoFlow Smart Generator compatibility, with X-Stream framing for fast turnaround between trips and outages. The LiFePO4 pack is marketed for about 10 years of daily-use lifespan storytelling, with EV-grade CTC structure language and 24/7 battery protection claims for tough temperature and load conditions. Weight: about 72.1 lbs.

3.1kWhCapacity
3.6kWOutput
7.2kWSurge
72.1 lbsWeight
heavy-dutyhome-backupwhole-homervquietupscampingoff-grid

Charge speed and max input power depend on cable, source, and EcoFlow accessories (e.g., Smart Generator). Confirm in-box contents for your Amazon seller/SKU.

~$1,299

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Who is this for?

Home Backup

Stay powered during outages — run essentials for hours or days

Whole-Home

Serious whole-home backup including HVAC, appliances, and more

RV & Overland

Run appliances, charge 12V systems, and power your rig off-grid

Camping

Keep lights, fans, and devices charged on multi-day trips

Full Specifications

Technical Specifications

Battery Capacity3.1kWh
Continuous Output3.6kW
Surge/Peak Output7.2kW
Battery TypeLiFePO4
Weight72.1 lbs
Solar Input800W
AC Outlets5 ports
USB-C Ports2 ports
USB-A Ports2 ports
Cycle Life3,000 cycles

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Using EcoFlow DELTA 3 Ultra (3.1kWh, 3.6kW output).

EcoFlow DELTA 3 Ultra portable power station

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Compare with similar stations

Other heavy 2.5kwh+ stations worth considering.

EcoFlow DELTA 3 Ultra portable power station
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Best Whole-Home
Anker SOLIX F3000 with solar panel and expansion battery
Anker
Anker SOLIX F3000
Capacity
3.1kWh
6.1kWh
6kWh
Continuous Output
3.6kW
7.2kW
3.6kW
Surge Output
7.2kW
14.4kW
7.2kW
Battery Type
LiFePO4
LiFePO4
LiFePO4
Weight
72.1 lbs
186.4 lbs
91.49 lbs
Solar Input
800W
5.6kW
2.4kW
Recharge Time
~1 hr 18 min
Cycle Life
3,000 cycles
3,000 cycles
4,000 cycles
Price

Prices are approximate. Affiliate links — helps support WattMatch.

How does the DELTA 3 Ultra compare?

See a full spec-by-spec breakdown and use-case verdict against each competitor.

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