The EcoFlow DELTA Mini is an 882Wh portable power station with a 1,400W inverter, suited to camping, van builds and backup for small appliances. It is an older product: on 2026-10-06 EcoFlow’s US store page listed it as sold out and a pre-order item, filed under its older DELTA series. EcoFlow does not say it is discontinued, and the manufacturer does not state a launch year.
How this review was produced: we do not buy or test the products we cover. This is a desk analysis of manufacturer specifications, manuals and documentation, safety and certification listings, and publicly available owner reports and third-party reviews. Figures are manufacturer claims or reported owner results.
This page contains affiliate links. The product cards further down are separate Amazon listings, not the DELTA Mini itself.
What EcoFlow Publishes for the DELTA Mini
Unless noted, the figures below come from EcoFlow’s US product page. A few come from the EU (230V) user manual, and we say so where it matters, because EU and US versions differ in outlets and input voltage.
- Capacity and chemistry: 882Wh (50.4V), NCM lithium-ion, rated at 800 cycles to 80%+ capacity
- AC output (US): 1,400W continuous, 2,100W surge, 120V pure sine wave, 5 AC outlets
- USB: USB-C at 100W max (5/9/12/15/20V 5A), two USB-A at 12W max each, one fast-charge USB-A at 18W max
- DC: 12V car port, 12.6V 10A, 126W max
- AC charging (US): X-Stream fast charge up to 900W; full recharge in about 1.6 hours, 0-80% in under 1 hour
- Solar input (US): 300W max, 11-75V DC, 10A max
- Car charging: 12V/24V DC at a default 8A, about 9.5 hours for a full recharge
- Weight and size: 23.6 lb (10.7 kg), 14.9 x 7.2 x 9.4 in
- Warranty: 24 months per EcoFlow’s US warranty table
- Operating range (EU manual): discharge -20 to 45C (-4 to 113F), charge 0 to 45C (32 to 113F)
EcoFlow’s solar charge-time claims for this unit are inconsistent across its own page (ranges of 3-6 hours, 4-8 hours and 2.5 hours appear in different places), so we leave out solar charge times rather than choose one. The EU manual lists a solar current of 13A max, which differs from the US page; this is a regional difference.
NCM Versus LFP
The DELTA Mini uses NCM lithium-ion cells rather than LFP. NCM packs generally hold more energy for their weight, which helps explain how EcoFlow fits 882Wh into 10.7 kg, about 82Wh per kilogram of whole unit (882 / 10.7). The trade is cycle life: 800 cycles to 80% is far below the 3,000 cycles EcoFlow’s US manual lists for the newer DELTA 2, which uses LFP. If you cycled the Mini once every day, 800 cycles would be about 2.2 years of use before reaching that 80% point on EcoFlow’s rating. For occasional weekend use it would take much longer. This is a manufacturer rating, not a measurement.
Runtime Estimates From the Numbers
EcoFlow publishes no runtime table we could verify, so these are our own estimates. They assume about 85% of the 882Wh is delivered through the inverter, roughly 750Wh usable. Real results depend on inverter efficiency, temperature and the load.
- A 60W load, such as a fridge averaging 60W while running, would run roughly 12 hours (750 / 60). Fridges cycle on and off, so a real day may stretch further.
- A 100W load, such as a laptop and lights, would run roughly 7 hours (750 / 100).
- A 1000W load, such as an electric kettle, would run roughly 45 minutes (750 / 1000 hours).
- At the full 1,400W rating the battery would last under 40 minutes.
Those numbers show the design tension. The inverter is large for the battery: it can supply 1,400W, but 882Wh does not sustain high loads for long. It suits short, heavy tasks and light all-day loads rather than long cooking sessions.
Charging and Input Options
The 900W AC input is the headline. EcoFlow lists a full recharge in about 1.6 hours, which is useful when you only have a short stop at a campsite with power or a house outlet. The solar input accepts up to 300W at 11-75V DC, and the EU manual notes an MC4-XT60 adapter cable that is supplied separately. Car charging from a 12V or 24V socket defaults to 8A and EcoFlow lists about 9.5 hours for a full recharge, so alternator charging on the road is a top-up method, not a quick refill.
X-Boost, UPS Behavior and Limits
EcoFlow’s EU 230V manual says X-Boost can power devices up to 2,200W while the rated output stays at 1,400W, and that it is enabled by default. We did not find a US 120V X-Boost figure, so check EcoFlow’s US documentation before relying on any number above 1,400W with a 120V heater or kettle. The same manual states that the EPS function switches to battery within 30ms and does not support 0ms switching. That is acceptable for routers and lights, not for servers or workstations that cannot tolerate any gap.
EcoFlow’s US page and EU manual do not mention expansion batteries, so capacity is fixed at 882Wh. Charging is allowed only from 0 to 45C, so keep it warm in cold weather before plugging in.
DELTA Mini Versus DELTA 2 on Paper
- Capacity: 882Wh (Mini) versus 1024Wh (DELTA 2, per its US manual)
- AC output: 1,400W / 2,100W surge versus 1,800W / 2,700W surge
- Chemistry and cycles: NCM, 800 cycles versus LFP, 3,000 cycles
- Weight: 10.7 kg versus about 12 kg
- Warranty: 24 months versus 5 years
The DELTA 2 is larger, longer-lived on paper and carries a longer warranty, and EcoFlow’s US store now redirects the DELTA 2 page to the DELTA 3, so the line has moved on. The Mini’s advantage is its lighter weight.
Who It Suits and Who Should Skip It
On paper the DELTA Mini suits van and camp setups with a fridge, lights, devices and an occasional high-wattage tool, and it suits buyers who want fast wall charging. We would pick it if the weight difference matters and you can find one at a fair price.
Skip it if you want long-lasting LFP cells, expansion, or a unit you can buy new today: EcoFlow’s US page showed it sold out. For heavy daily use, the 800-cycle rating is the figure to weigh.
Frequently Asked Questions
What is the capacity and chemistry of the DELTA Mini?
EcoFlow’s US page lists 882Wh and NCM lithium-ion chemistry with a rating of 800 cycles to 80%+ capacity. It is not an LFP battery.
How much power can the DELTA Mini output?
EcoFlow’s US page lists 1,400W continuous and 2,100W surge at 120V pure sine wave. EcoFlow’s EU 230V manual describes an X-Boost mode that powers devices up to 2,200W; we did not find the US 120V X-Boost figure, so we do not quote one.
Does the DELTA Mini support expansion batteries?
Neither the US product page nor the EU manual mentions expansion batteries. Treat it as a fixed-capacity unit unless EcoFlow states otherwise.
How fast does it charge from the wall?
EcoFlow lists X-Stream fast charging at 900W max and a full recharge in about 1.6 hours, with 0-80% in under 1 hour.
Is the DELTA Mini still available?
On 2026-10-06 the US store page showed it as sold out and a pre-order item. EcoFlow does not state that it is discontinued, but the page sits in the older DELTA series.
Bottom Line
The EcoFlow DELTA Mini pairs an 882Wh NCM battery with a 1,400W inverter and a fast 900W wall input in a 10.7 kg case. Its limits are an 800-cycle rating, fixed capacity, a 24-month warranty and, on EcoFlow’s own store, a sold-out listing. Read it as a capable but aging design, and compare it with the DELTA 2 or DELTA 3 before paying anything close to new-unit prices.
