EcoFlow DELTA 3 Plus
- AC delivered · est.
870 Wh. Show source
estimated sourceus.ecoflow.com ↗2026-07-04- output
1,800 W. Show source
claimed sourceus.ecoflow.com ↗- surge
3,600 W. Show source
claimed sourceus.ecoflow.com ↗- weight
12.5 kg. Show source
claimed sourceus.ecoflow.com ↗- recharge
56 min. Show source
claimed sourceus.ecoflow.com ↗
Excellent
#1 of 19
in the Midsize (1 kWh class) class
Lifted by Durability & longevity and Output & versatility; held back by capacity & expansion.
Check current availability and pricing at the retailer.
Check price on AmazonSee alternatives to the EcoFlow DELTA 3 Plus →At a glance
EcoFlow DELTA 3 Plus is a midsize (1 kwh class) model best suited to camper. It supplies 1,800 W of continuous AC output. BatteryRank scores it 72 out of 100 within its size class.
Our verdict on the EcoFlow DELTA 3 Plus
Set this beside the standard DELTA 3 and the differences are exactly two: solar input doubles from 500 W to 1,000 W, and the USB-C ports go from 100 W to 140 W. Capacity, inverter, surge, cycles, switchover, recharge time, weight and expansion ceiling are all identical. That makes the buying decision unusually clean — if you charge from panels or run a high-draw laptop, the Plus earns its name; otherwise it is the same unit.
- Solar is how you intend to refill it, not a backup planAccepting 1,000 W of panel input against a 1,024 Wh pack means a strong day can return close to a full charge, which 500 W cannot approach.
- You run a laptop that genuinely draws more than 100 WThe 140 W USB-C ports cover a large workstation laptop at full tilt directly over DC, avoiding the inverter and the losses that come with it.
- You will charge it from a wall socket and your devices are ordinaryEverything except the 1,000 W solar ceiling and the 140 W USB-C ports is identical to the standard DELTA 3, so you would be paying for two features you never reach.
- You need 240 V or substantially more capacity1,024 Wh at 120 V is a single-circuit unit however you charge it, and doubling the solar input does not change what the inverter can address. It offers 4,096 Wh with 240 V split-phase output.
The honest limit: The 1,000 W solar rating is the reason this model exists, and reaching it requires a panel array most buyers will not own — several hundred watts of nameplate panel rarely delivers its rating once angle, temperature and cloud are accounted for. The input ceiling is real; the conditions that saturate it are uncommon.
What our data can’t tell you: The capacity figure our record holds for this unit was estimated by analogy to the standard DELTA 3 rather than measured on this one, so we treat it as unverified. No independent party in our sources has separately tested the Plus, which also means its higher solar ceiling has never been confirmed under real panel conditions by anyone we cite.
BatteryRank Engineering Team · Last reviewed · Method
Capacity truth
The watt-hour number on the box isn't what reaches your devices. Rated on the label vs what actually leaves an outlet.
1,024 Wh. Show source
claimed sourceus.ecoflow.com ↗2026-07-04The marketing number — total cell capacity.
870 Wh. Show source
estimated sourceestimate = battery-side usable capacity × 85% inverter efficiencyWhat reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
Also independently measured
- AC charge time
56 min. Show source
verified source~56 min (OEM/Amazon; SGS-certified fast charge)2026-07-04- Solar performance
—. Show source
verified sourcedual 500W solar ports = up to 1000W input (double base DELTA 3)2026-07-04
~56 min (OEM/Amazon; SGS-certified fast charge)
dual 500W solar ports = up to 1000W input (double base DELTA 3)
What it can run
Same sourced device assumptions used by our calculators, applied to this model's usable AC energy. Actual runtime varies with load, temperature, and standby draw.
| Device | Estimated runtime | Sourced assumption |
|---|---|---|
| CPAP (humidifier off) | about 12.1 nights | 9 W · |
| CPAP (heated humidifier on) | about 1.9 nights | 56 W · |
| Refrigerator (full-size) | about 14 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 48 hours | 18 W · |
| Laptop (65W charger) | about 27 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 43 full charges | 20 W · |
Who it fits
Mechanical matches against this model's own sourced specs — never invented sentiment, never a guess on a spec we don't have.
12.5 kg with 1000 W solar input → carry-in, solar-rechargeable
870 Wh AC-delivered (est.) → multiple CPAP nights per charge
1800 W inverter, 870 Wh AC-delivered (est.) → runs a fridge through an outage
How it scores
Four buyer pillars over seven sub-scores — computed from sourced data with a published formula, price-independent by design.
Power
Battery-side usable capacity and how much you can run at once.
Usable watt-hours and how far you can grow it with add-on batteries, versus its size class.
Continuous and surge wattage, outlet count, and USB-C fast-charging.
Trust
Owner reputation, safety record, warranty, and build durability.
Owner ratings, brand reputation, recall record, and warranty backing.
Rated cycle life, warranty length, cell chemistry, and weather sealing.
Charging
Wall and solar recharge speed.
Wall recharge speed, solar input, and multi-source charging.
Livability
Lightweight, portable, and quiet enough to live with.
Weight, footprint, handle, and wheels, versus its size class.
Fan noise under load — quieter is better for bedrooms and CPAP use.
How this score is computed
The BatteryRank score is computed from sourced data with a published formula — ranked by data, not lab testing. Seven sub-scores blend into a 0–100 composite, grouped into four buyer pillars. Price is deliberately not a scoring input: prices move daily, so value intelligence lives in the price section above, judged against this model's own history.
| Pillar | Built from |
|---|---|
| Power | Capacity & expansion + Output & versatility |
| Trust | Trust & reliability + Durability & longevity |
| Charging | Charging & solar |
| Livability | Portability + Quiet / livability |
Scores are cohort-relative — each model is ranked against others in its size class. Missing inputs renormalize out rather than scoring zero (a model is never penalized for a spec nobody in its class publishes), and any figure resting on a documented estimate is tagged est. A full methodology page is coming.
Full specifications
Manufacturer-claimed unless marked verified (FCC/UL/DOE/lab). Tap or focus a figure to view its source.
Capacity & battery
- Battery-side usable capacity
1,024 Wh. Show source
claimed sourceus.ecoflow.com ↗- Rated cycle life
4,000 cycles. Show source
claimed sourceus.ecoflow.com ↗- Battery chemistry
LiFePO4. Show source
claimed sourceus.ecoflow.com ↗- Max capacity with expansion
5,000 Wh. Show source
claimed sourceus.ecoflow.com ↗- Rated capacity
1,024 Wh. Show source
claimed sourceus.ecoflow.com ↗- Cycle-life threshold
80 %. Show source
claimed sourceus.ecoflow.com ↗
Energy available from the battery before output-conversion losses. AC-delivered capacity is shown separately in Capacity Truth.
How many full charge-and-drain cycles before the battery drops to its rated threshold (shown alongside — brands rate to different thresholds, so never compare bare cycle counts).
The type of battery cell. LiFePO4 (LFP) cells last far more cycles and are more thermally stable than older lithium-ion (NMC) cells.
The largest total capacity this unit can reach once you add every supported expansion battery.
The battery's nameplate energy capacity — the headline number on the box. Battery-side usable and AC-delivered capacity are shown separately.
The remaining-capacity level the cycle rating is measured to. 3,000 cycles to 80% is a stronger battery than 3,000 cycles to 70% — always read the two numbers together.
Power output
- Continuous power output
1,800 W. Show source
claimed sourceus.ecoflow.com ↗- Surge power output
3,600 W. Show source
claimed sourceus.ecoflow.com ↗- AC outlets
6 outlets. Show source
claimed sourceus.ecoflow.com ↗- USB-A ports
2 ports. Show source
claimed sourceus.ecoflow.com ↗- USB-C ports
2 ports. Show source
claimed sourceus.ecoflow.com ↗- USB-C max output
140 W. Show source
claimed sourceus.ecoflow.com ↗- 12V car ports
1 ports. Show source
claimed sourceus.ecoflow.com ↗- DC barrel ports
2 ports. Show source
claimed sourceus.ecoflow.com ↗- Max combined output
1,800 W. Show source
claimed sourceus.ecoflow.com ↗
The most power you can draw at once, sustained — this has to be higher than the running wattage of whatever you're plugging in.
A brief power spike the unit can absorb when a device first switches on — matters for things with motors or compressors, like fridges.
How many standard wall-style outlets are built in.
How many USB-A ports are built in, for charging older phones, lights, and accessories.
How many USB-C ports are built in — check the per-port wattage below if you need fast charging for a laptop.
The fastest a single USB-C port can charge a device — relevant for laptops and fast-charging phones.
How many car-socket (cigarette-lighter) style 12V outputs are built in — what CPAPs and car fridges plug into for the most efficient overnight running.
How many round barrel-style DC outputs are built in, used by routers, some lights, and older electronics.
The most power the unit can deliver across ALL ports at the same time — can be lower than the AC rating plus every USB port added up.
Charging & solar
- AC recharge speed
1,500 W. Show source
claimed sourceus.ecoflow.com ↗- AC charge time (0–100%)
56 min. Show source
claimed sourceus.ecoflow.com ↗- Max solar input
1,000 W. Show source
claimed sourceus.ecoflow.com ↗
How fast the unit recharges from a wall outlet — higher means shorter waits between uses.
How long a full recharge takes from a wall outlet, start to finish.
The most solar panel wattage the unit can accept — undersized panels just mean slower charging, not damage, but oversizing this is wasted money.
Reliability & durability
- UPS switchover time
10 ms. Show source
claimed sourceus.ecoflow.com ↗
How fast the unit takes over when grid power cuts out. Under ~20ms is fast enough that most electronics — including many CPAP machines — won't even blip.
Size & portability
- Weight
12.5 kg. Show source
claimed sourceus.ecoflow.com ↗
How much the unit weighs on its own, without accessories — relevant for portability and carrying it up stairs during an outage.
What reviewers & owners report
Named outlets and marketplaces, each rating credited where it was published.
- DELTA 3 platform + upgraded USB (140W USB-C x2, 36W USB-A) and dual 1000W solar — Across reviewers ·
- expandable 5kWh — Across reviewers ·
- SGS-certified fast charge — Across reviewers ·
- NAS/UPS HID — Across reviewers ·
- 5-yr warranty — Across reviewers ·
- Amazon BSR #3 — Across reviewers ·
- same 1800W base output as cheaper DELTA 3 (2200W X-Boost) — Across reviewers ·
- ~27.6 lb no folding handle — Across reviewers ·
- premium over base for mainly USB/solar gains — Across reviewers ·
- no 240V — Across reviewers ·
- Wirecutter: none
- Popular Mechanics: reviewed ("Tons of power and capacity"; numeric score not fetchable — PopMech blocks automated fetch) source ↗
- portable-power channels rate it a top 1kWh value with upgraded USB-C — YouTube reviewers ·
- no single measured consensus captured — YouTube reviewers ·
Brand reputation: Popular 2024 model; Amazon 4.7/616, BSR #3. Popular Mechanics positive. Brand-level: EcoFlow DELTA Max 2000 (EFD310) fire recall 2025-10 (older separate product, not DELTA 3 Plus)
Sources: us.ecoflow.com/products/delta-3-plus-portable-power-station (on-page Specs) accessed 2026-07-04; amazon.com/dp/B0DCC2BVFW accessed 2026-07-04; popularmechanics.com DELTA 3 Plus review; saferproducts.gov (EcoFlow) checked 2026-07-04
What else to consider instead of the EcoFlow DELTA 3 Plus
Same or adjacent size class, ordered by the price-independent composite. Every alternative is better than the EcoFlow DELTA 3 Plus at something and worse at something else, so each row states both halves — each one arithmetic on two sourced readings, with a dimension skipped rather than guessed when either side is missing a figure.
- DJI Power 1000 V2score 71 · same size class
- Why you would switch
- The DJI Power 1000 V2 carries 44% more continuous output (2,600 W vs 1,800 W), which decides what it can run at all.
- What you give up
- Nothing the sourced data can show — the EcoFlow DELTA 3 Plus leads on no compared dimension by a margin worth acting on.
- Anker SOLIX C1000 Gen 2score 68 · same size class
- Why you would switch
- The Anker SOLIX C1000 Gen 2 carries 11% more continuous output (2,000 W vs 1,800 W), which decides what it can run at all.
- What you give up
- The EcoFlow DELTA 3 Plus takes 67% more rated solar input (1,000 W vs 600 W) for off-grid recharging.
- EcoFlow DELTA 3score 68 · same size class
- Why you would switch
- Nothing in the sourced data separates it from the EcoFlow DELTA 3 Plus by a margin worth acting on.
- What you give up
- The EcoFlow DELTA 3 Plus takes 100% more rated solar input (1,000 W vs 500 W) for off-grid recharging.
- Bluetti Elite 100 v2score 67 · same size class
- Why you would switch
- The Bluetti Elite 100 v2 delivers 15% more usable AC energy (1,000 Wh vs 870 Wh).
- What you give up
- The EcoFlow DELTA 3 Plus reaches a full AC charge in 56 minutes against 70.
- Oupes Mega 1score 66 · same size class
- Why you would switch
- The Oupes Mega 1 carries 11% more continuous output (2,000 W vs 1,800 W), which decides what it can run at all.
- What you give up
- The EcoFlow DELTA 3 Plus takes 25% more rated solar input (1,000 W vs 800 W) for off-grid recharging.
Quick answers
Each answer restates a sourced figure from elsewhere on this page — nothing new, nothing guessed.
- How much does the EcoFlow DELTA 3 Plus weigh?
- 12.5 kg (27.6 lb), manufacturer-claimed, without accessories.
- What are the dimensions of the EcoFlow DELTA 3 Plus?
- 398 × 202 × 284 mm (15.7 × 8 × 11.2 in), length × width × height, manufacturer-claimed.
- How much capacity does the EcoFlow DELTA 3 Plus deliver through an AC outlet?
- About 870 Wh of the rated 1,024 Wh reaches an AC outlet from a full charge — an estimate after our published 15% inverter-loss constant (marked est. on this page).
- How long does the EcoFlow DELTA 3 Plus take to charge?
- 56 min from a wall outlet, 0 to 100%, manufacturer-claimed. Fast-charge modes and solar input differ — see the charging specs on this page.
- How many watts can the EcoFlow DELTA 3 Plus output?
- 1,800 W continuous AC output and 3,600 W surge output, manufacturer-claimed. Appliance startup demand must stay within the relevant limit.
- How much solar input can the EcoFlow DELTA 3 Plus accept?
- 1,000 W maximum solar input, manufacturer-claimed. Actual harvest depends on panel compatibility, sun, orientation, temperature, and conversion losses.
- What is the cycle-life rating of the EcoFlow DELTA 3 Plus?
- 4,000 cycles to 80% remaining capacity, manufacturer-claimed. A cycle rating is not a calendar-life guarantee.
- Can the EcoFlow DELTA 3 Plus work as a UPS?
- Its manufacturer-claimed transfer time is 10 ms. Confirm that your connected equipment tolerates that transfer time; this is not the same as a zero-transfer online UPS.
- How far can the EcoFlow DELTA 3 Plus expand?
- Up to 5,000 Wh with compatible expansion hardware, manufacturer-claimed. The base-unit capacity and expansion-system capacity are shown separately.
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