EcoFlow DELTA 3 Max Plus
A published car-charge wattage for a faster refill from the car.
Who it's for
- A faster refill from the car.
- Using the wattage the brand lists.
Who it's not for
- Charging as fast as a wall outlet.
- Running the vehicle.
Pros
- The battery can take an add-on pack.
- UPS switchover is about 10 ms.
- It can charge from a solar panel, up to 1,000 W.
- Quieter than the other picks here.
Cons
- 48.7 lb. Too heavy to carry far.
Key specs
| Capacity | 2,048 Wh |
|---|---|
| Output | 3,000 W |
| Weight | 48.7 lb · 22.09 kg |
| Ports | AC outlets x 4 |
| Dimensions | 494 × 242 × 305 mm (H×W×D) |
| Noise | 25 dB · EcoFlow |
| Brand tech | X-Stream; X-Boost |
ALLPOWERS VOLIX P300
The lowest price that still covers a slow refill from the car.
Who it's for
- A slow refill from the car.
- A lower price, if those devices are enough.
Who it's not for
- Charging as fast as a wall outlet.
- A longer outage, or more devices at once.
Pros
- UPS switchover is about 20 ms.
- It can charge from a solar panel, up to 110 W.
- A laptop can charge from the USB-C port, up to 100 W.
- The easiest of these picks to carry.
- The lowest list price of these picks.
Cons
- Continuous output is under 1,500 W.
Key specs
| Capacity | 256 Wh |
|---|---|
| Output | 300 W |
| Weight | 7.87 lb · 3.57 kg |
| Ports | AC outlets x 1, USB-C x 1 up to 100W, USB-A x 2, 12V car outlet |
| Wall charge | About 1 hours |
| Dimensions | 10.2 x 8.2 x 4.9 in |
| Solar voltage | 11–30V XT60 (GearRanking; confirm) |
EcoFlow DELTA Pro 3
Enough stored energy for a faster refill from the car.
Who it's for
- A faster refill from the car.
- More than one device at the same time.
Who it's not for
- Charging as fast as a wall outlet.
- Carrying it by hand.
Pros
- The battery can take an add-on pack.
- UPS switchover is about 10 ms.
- It can charge from a solar panel, up to 2,600 W.
Cons
- 113.5 lb. Moving it takes two people or a cart.
Key specs
| Capacity | 4,096 Wh |
|---|---|
| Output | 4,000 W |
| Weight | 113.5 lb · 51.48 kg |
| Ports | AC outlets x 7, USB-C x 2, USB-A x 2, 12V car outlet |
| Dimensions | 410.4 × 341 × 693 mm (16.16 × 13.43 × 27.28 in) |
| Solar voltage | HV 30–150V (1600W) + LV 11–60V (1000W); 2600W total |
| Noise | 30 dB · EcoFlow |
| Brand tech | X-Stream; X-Boost; X-Guard; X-Quiet |
| Battery test | 3,790 Wh via OutdoorGearLab |
EcoFlow RIVER 3 Plus
Light enough to pick up with one hand, for a slow refill from the car.
Who it's for
- A pack you can carry in one hand.
- A slow refill from the car.
Who it's not for
- Charging as fast as a wall outlet.
- A long outing with several devices.
Pros
- The battery can take an add-on pack.
- UPS switchover is about 10 ms.
- It can charge from a solar panel, up to 220 W.
- A laptop can charge from the USB-C port, up to 100 W.
Cons
- Continuous output is under 1,500 W.
Key specs
| Capacity | 286 Wh |
|---|---|
| Output | 600 W |
| Weight | 10.4 lb · 4.72 kg |
| Ports | AC outlets x 3, USB-C x 1 up to 100W, USB-A x 2 |
| Wall charge | About 1 hours |
| Dimensions | 9.2×9.1×5.8 in |
| Solar voltage | 11–55V (car/solar shared input band per PDP car input) |
| Noise | 30 dB · EcoFlow |
| Brand tech | X-Stream; X-Boost |
Compare the specs
Our best picks come first. The Also worth a look models follow.
| Model | Role | List price | Capacity | Output | Weight | Brand tech |
|---|---|---|---|---|---|---|
| EcoFlow DELTA 3 Max Plus | Best overall | $1,199.00 | 2,048 Wh | 3,000 W | 48.7 lb · 22.09 kg | X-Stream; X-Boost |
| ALLPOWERS VOLIX P300 | Best budget | $139.00 | 256 Wh | 300 W | 7.87 lb · 3.57 kg | Not listed |
| EcoFlow DELTA Pro 3 | Best for backup | $2,799.00 | 4,096 Wh | 4,000 W | 113.5 lb · 51.48 kg | X-Stream; X-Boost; X-Guard; X-Quiet |
| EcoFlow RIVER 3 Plus | Lightest | $299.00 | 286 Wh | 600 W | 10.4 lb · 4.72 kg | X-Stream; X-Boost |
| BLUETTI Elite 400 | Also worth a look | $1,399.00 | 3,840 Wh | 2,600 W | 85.98 lb · 39 kg | UltraCell; TurboBoost; BLUETOPUS; PowerArmor; HyperWatt |
| EcoFlow DELTA 3 | Also worth a look | $629.00 | 1,024 Wh | 1,800 W | 27.6 lb · 12.52 kg | X-Stream; X-Boost |
| Anker SOLIX C2000 Gen 2 | Also worth a look | $1,199.99 · Sold out | 2,048 Wh | 2,400 W | 41.7 lb · 18.91 kg | InfiniPower; HyperFlash |
| Anker SOLIX F2000 (PowerHouse 767) | Also worth a look | £1,699.00 · Sold out | 2,048 Wh | 2,400 W | 67.2 lb · 30.48 kg | InfiniPower; GaNPrime; HyperFlash; EasyTow |
| DJI Power 2000 | Also worth a look | $1,299.00 | 2,048 Wh | 3,000 W | 48.5 lb · 22 kg | Not listed |
| EcoFlow DELTA 3 Max | Also worth a look | $749.00 | 2,048 Wh | 2,400 W | 44.8 lb · 20.32 kg | X-Stream; X-Boost |
Pick by size
Start with the size. The link is the pick in that range.
| Size | Capacity | Pick |
|---|---|---|
| Small | Under 500 Wh | ALLPOWERS VOLIX P300 · Best budget |
| Mid | 500–999 Wh | No pick in this range. |
| Large | 1,000–1,999 Wh | No pick in this range. |
| XL | 2,000 Wh and up | EcoFlow DELTA 3 Max Plus · Best overall |
Runtime estimates
About how long these picks run common devices. Loads that matter most for this page come first. Estimate, not a measurement: rated watt-hours × 85% ÷ the device's watts. Temperature, startup, and conversion loss change the real time.
| Device | EcoFlow DELTA 3 Max Plus | ALLPOWERS VOLIX P300 | EcoFlow DELTA Pro 3 | EcoFlow RIVER 3 Plus |
|---|---|---|---|---|
| Small fan (10 W) | About 174.1 hours | About 21.8 hours | About 348.2 hours | About 24.3 hours |
| Phone fast charge (15 W) | About 116.1 hours | About 14.5 hours | About 232.1 hours | About 16.2 hours |
| CPAP (40 W) | About 43.5 hours | About 5.4 hours | About 87 hours | About 6.1 hours |
| Car fridge (60 W) | About 29 hours | About 3.6 hours | About 58 hours | About 4.1 hours |
| Laptop (65 W) | About 26.8 hours | About 3.3 hours | About 53.6 hours | About 3.7 hours |
| Electric kettle (1,000 W) | About 1.7 hours | Can't run this. | About 3.5 hours | Can't run this. |
Also worth a look
Other models close to these picks.
BLUETTI Elite 400
$1,399.00 · 3,840 Wh · 2,600 WLess rated capacity than EcoFlow DELTA Pro 3, at a lower list price.
See all the specs
EcoFlow DELTA 3
$629.00 · 1,024 Wh · 1,800 WMore rated capacity than EcoFlow RIVER 3 Plus, at a higher list price.
See all the specs
Anker SOLIX C2000 Gen 2
$1,199.99 · Sold out · 2,048 Wh · 2,400 WThe same rated capacity as EcoFlow DELTA 3 Max Plus, at a higher list price.
See all the specs
Anker SOLIX F2000 (PowerHouse 767)
£1,699.00 · Sold out · 2,048 Wh · 2,400 WThe same rated capacity as EcoFlow DELTA 3 Max Plus.
See all the specs
DJI Power 2000
$1,299.00 · 2,048 Wh · 3,000 WThe same rated capacity as EcoFlow DELTA 3 Max Plus, at a higher list price.
See all the specs
EcoFlow DELTA 3 Max
$749.00 · 2,048 Wh · 2,400 WThe same rated capacity as EcoFlow DELTA 3 Max Plus, at a lower list price.
See all the specsHow this list was built
Every model on this page is held to the same short set of rules for this job. Score formula and site-wide rules are on How we review.
Questions
What is the best portable power station to charge from a car?
EcoFlow DELTA 3 Max Plus (2,048 Wh, 3,000 W, 48.7 lb, listed at $1199) leads. Every model here has a published car-charge wattage (this pick lists 1,000 W). Car charging is slower than a wall outlet.
How should I size watt-hours on this page?
Add label watts × hours for each device, divide by 0.85, and keep continuous watts above your largest single load. The overall pick here is 2,048 Wh. That math is a planning estimate, not a lab run of your unit.
How fast can I recharge from a car?
Use the brand's car-charge wattage. EcoFlow DELTA 3 Max Plus lists 1,000 W. That is much slower than wall charging — plan hours, not minutes, for a large pack.
What is the best budget alternative on this page?
ALLPOWERS VOLIX P300 (256 Wh, 300 W, 7.87 lb, listed at $139) is the budget pick. You give up some capacity versus EcoFlow DELTA 3 Max Plus, and you keep a lower list price.
How is the backup pick different from the overall pick?
EcoFlow DELTA Pro 3 stores 4,096 Wh versus 2,048 Wh on EcoFlow DELTA 3 Max Plus. Take it when runtime matters more than moving the station often.
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The score rules are on How we review. Independence rules are on the Editorial policy.