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EcoFlow DELTA 3 vs Jackery Explorer 1000 v2 (2026): which should you buy?
By Mike · Updated October 8, 2026 · Based on manufacturer specs and the Amazon listings
Same size class, different priorities. The DELTA 3 can grow to 5kWh with an add-on battery, has six AC outlets and refills in under an hour. The Jackery is about 3.8 pounds lighter and has slightly more capacity, but it can't expand and tops out at 1,500W.
Choose the EcoFlow DELTA 3 if
- You might want more capacity later. It takes an EcoFlow extra battery, up to 5kWh total. The Jackery can't add one.
- You'll run things between 1,500W and 1,800W. The Jackery stops at 1,500W.
- You plug in a lot at once: 6 AC outlets and 2 USB-C at 100W each, against 3 AC and one 100W USB-C.
- You want a fast refill with no app: EcoFlow lists 56 minutes to full on a wall outlet.
- You want a fast switchover for a router, modem or laptop. EcoFlow lists under 10ms and Jackery within 20ms. Neither is zero-break, and Jackery warns against workstations and servers.
Choose the Jackery Explorer 1000 v2 if
- Every pound counts. It's about 23.8 pounds, 3.8 pounds lighter.
- It will sit in the room you sleep in. Jackery lists its fan at 22dB or less. EcoFlow says under 30dB at 600W. Those are makers' claims.
- You want a published standby draw to plan runtime around. Jackery lists 18W. EcoFlow lists none for the DELTA 3, so ours is an assumed range.
The two units
EcoFlow DELTA 3
1,024Wh and 1,800W in about 27.6 pounds. It's the only 1kWh unit here that takes an add-on battery, up to 5kWh.
Jackery Explorer 1000 v2
1,070Wh and 1,500W in about 23.8 pounds. It's the lightest of the 1kWh units we compare, and Jackery says it doesn't support add-on battery packs.
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Key specs
| EcoFlow DELTA 3 | Jackery Explorer 1000 v2 | |
|---|---|---|
| Capacity | 1,024Wh | 1,070Wh |
| Rated AC output | 1,800W | 1,500W |
| Weight | About 27.6 lb | About 23.8 lb |
| Wh per pound | About 37 | About 45 |
| Wall charge to full | 56 min (1,500W) | About 1.7 hr (default mode) |
| Max solar input | 500W | 400W |
| Expandable | Yes, up to 5kWh with an EcoFlow extra battery | No |
| Warranty | 5 years | 3 years, extendable by 2 (5 max) |
Full specs
| EcoFlow DELTA 3 | Jackery Explorer 1000 v2 | |
|---|---|---|
| Surge / boost | 3,600W. X-Boost (off by default, for heating devices): 2,200W per EcoFlow's spec table, 2,600W per its manual | 3,000W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycle life | 4,000 cycles to 80% | 4,000 cycles to 70% |
| Dimensions | 15.7 x 8.0 x 11.2 in | 12.87 x 8.82 x 9.72 in |
| AC outlets | 6 | 3 |
| USB-C | 2 x 100W | 1 x 100W, 1 x 30W |
| USB-A | 2 x 18W | 1 x 18W |
| Other ports | 12V car port (10A), 2 x DC5521 (3A) | 12V car port (10A) |
| Wall charge to 80% | 30 min (Amazon listing; EcoFlow's page doesn't give an 80% time) | Not stated |
| Solar voltage range | 11 to 60V, 15A max | 16 to 60V (two ports, 200W each) |
| Car charging | Yes, 12V 8A through the XT60 port; about 1.3 hr with EcoFlow's 800W Alternator Charger (an add-on) | Yes (about 12 hr; about 3 hr with Jackery's car fast charger) |
| UPS switchover | Under 10ms (EcoFlow calls it a standby UPS) | Within 20ms (Jackery's claim; not zero-break) |
| Pass-through charging | Yes | Yes (AC output limited to 1,500W while charging) |
| Standby draw (maker's figure) | Not published | 18W |
| Fan noise (maker's claim) | Under 30dB at 600W, under 40dB at 1,200W | 22dB or less (help center, no test conditions) |
| App | Yes (Wi-Fi and Bluetooth) | Yes (Wi-Fi/Bluetooth) |
| Discharge temperature | 14 to 113°F (manual) | 14 to 113°F |
| Charge temperature | 32 to 113°F (manual) | 32 to 113°F |
Where the sources disagree:
- EcoFlow DELTA 3: X-Boost: EcoFlow's spec table says "Max Device(s) Power (with X-Boost) 2200W". The page copy, manual (120V) and Amazon listing say over 2,600W. The page shows both.
- EcoFlow DELTA 3: Charge time: EcoFlow's page says 56 min to full on 1,500W AC alone. The Amazon listing ties the 56 min to "500W solar input and 1500W max AC input" combined. The page uses EcoFlow's page.
- Jackery Explorer 1000 v2: Fast charge: the Amazon listing says 0 to 100% in 1 hour "with emergency charging activated via the Jackery App". Jackery's help center says emergency charging mode can't be set in the app and lists AC charging as about 1.7 hr. The page uses 1.7 hr.
- Jackery Explorer 1000 v2: Noise: the help center lists the fan at 22dB or less. The Amazon listing describes a 30dB quiet overnight charging mode. Neither gives test conditions.
- Jackery Explorer 1000 v2: Solar: the Amazon listing says it is compatible only with Jackery solar panels. The help center gives a 16 to 60V input spec without that limit.
- Jackery Explorer 1000 v2: Warranty: the help center says 3 years, extendable by 2. The Amazon listing's warranty field just says "1". The page uses the help center.
Specs are from EcoFlow's product page and user manual, Jackery's help center and product page, and the two Amazon listings, checked October 8, 2026.
What they will run (estimates)
Hours = capacity x 0.85 x 0.90 ÷ (load + standby draw). The 0.85 covers inverter losses. The 0.90 assumes 90% of the battery is usable. That's the figure Bluetti publishes, and we apply it to every unit because the other makers publish none. Standby draw is each maker's own figure. These are estimates, not tests. Where a maker publishes no standby draw, we show a range (see the note under the table).
| Load (typical draw) | DELTA 3, 1,024Wh | Jackery, 1,070Wh |
|---|---|---|
| Phone charges (about 15Wh each, via USB) | About 52 charges | About 55 charges |
| Wi-Fi router (15W) | About 24 to 33 hr* | About 25 hr |
| CPAP, no heated humidifier (40W) | About 14 to 16 hr* | About 14 hr |
| Mini fridge (45W average), rough estimate | About 12 to 15 hr* | About 13 hr |
| Laptop (60W) | About 10 to 11 hr* | About 10 hr |
| 50-inch TV (100W) | About 6.6 to 7.2 hr* | About 6.9 hr |
| Full-size fridge (120W average), rough estimate | About 5.7 to 6.1 hr* | About 5.9 hr |
| Microwave (1,000W) | About 0.8 hr* | About 0.8 hr |
| Space heater (1,500W) | About 0.5 hr* | About 0.5 hr, at its rated limit |
The fridge rows are rough because compressors cycle on and off and pull a surge at startup. The phone row runs off the USB ports, so standby draw doesn't apply.
* EcoFlow doesn't publish a standby draw for the DELTA 3, so its figures assume 9 to 18W. That spans the lowest (Anker C2000 Gen 2, 9W) to the highest (Jackery, 18W) standby draw published by the makers we cover. It's our assumption, not EcoFlow's number.
One night of outage: a full-size fridge plus a CPAP draws about 160W together. The EcoFlow DELTA 3 runs that pair for about 4.4 to 4.6 hours on an assumed 9 to 18W standby draw, and the Jackery Explorer 1000 v2 about 4.6 hours. Neither gets through an 8-hour night, so you'd be choosing between the fridge and the CPAP before morning.
Skip it if
Skip the DELTA 3 if you want a published standby draw to plan runtime around. EcoFlow doesn't publish one, so our DELTA 3 runtimes are a range. Also skip it if it will mostly ride in a car and every pound matters.
Skip the Jackery if you think you'll need more than about 1kWh someday. It can't add a battery, and the DELTA 3 can.
Questions about this pair
Which one runs longer?
On capacity alone, the Explorer 1000 v2 holds 46Wh more (about 4.5%). EcoFlow doesn't publish a standby draw for the DELTA 3, so we assume 9 to 18W. On that assumption, a fridge and CPAP (about 160W together) would run about 4.4 to 4.6 hours on the DELTA 3 against about 4.6 on the Explorer 1000 v2. On those numbers it's too close to call.
Is the DELTA 3's 56-minute charge real?
It's EcoFlow's figure for 0 to 100% at 1,500W from the wall, from EcoFlow's internal testing. You don't need the app for it.
What is X-Boost?
An EcoFlow mode that lets the DELTA 3 run some heating devices above 1,800W by lowering the voltage. It's off by default. EcoFlow's spec table says 2,200W; its manual and page copy say about 2,600W. Don't count on it for anything with a motor.
Can I add a battery to either one later?
Only the DELTA 3. EcoFlow lists DELTA 3, DELTA 2, DELTA 2 Max and DELTA Pro 3 extra batteries, up to 5kWh. Jackery says the Explorer 1000 v2 doesn't support battery packs.
Related comparisons
- Bluetti Elite 100 V2 vs EcoFlow DELTA 3
- Bluetti AC180 vs EcoFlow DELTA 3
- Anker SOLIX C1000 vs Jackery Explorer 1000 v2
By Mike · Last checked October 8, 2026 · Based on manufacturer specs and the Amazon listings.