- 65W
- while running
- 70Wh
- for each of the full charges
- 15 of 15
- models we track can run it
- Lightest and cheapestEcoFlow River 33 full charges$239Check price
- Best for a week off gridBluetti AC709 full charges$359Check price
- Best for gaming laptops and shared desksAnker Solix C1000 Gen 213 full charges$499.99Check price
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Runtime for every model
| Model | Runtime | Capacity | Output | Weight | Price | Per Wh |
|---|---|---|---|---|---|---|
| EcoFlow River 3 | 3 full charges | 245Wh | 300W | 7.8 lb | $239 | $0.98 |
| Jackery Explorer 300 v2 | 3 full charges | 288Wh | 300W | 8.2 lb | $299 | $1.04 |
| Anker Solix C300 | 3 full charges | 288Wh | 300W | 9.1 lb | $249 | $0.86 |
| EcoFlow River 3 Plus | 3 full charges | 286Wh | 600W | 10.4 lb | $299 | $1.05 |
| Bluetti AC70 | 9 full charges | 768Wh | 1,000W | 22.5 lb | $359 | $0.47 |
| EcoFlow Delta 3 Plus | 13 full charges | 1,024Wh | 1,800W | 27.6 lb | $669 | $0.65 |
| Jackery Explorer 1000 v2 | 13 full charges | 1,070Wh | 1,500W | 23.8 lb | $499 | $0.47 |
| Anker Solix C1000 Gen 2 | 13 full charges | 1,024Wh | 2,000W | 24.9 lb | $499.99 | $0.49 |
| Bluetti Elite 100 V2 | 13 full charges | 1,024Wh | 1,800W | 25 lb | $489 | $0.48 |
| EcoFlow Delta 3 Max | 26 full charges | 2,048Wh | 2,400W | 44.8 lb | $879 | $0.43 |
| Jackery Explorer 2000 v2 | 26 full charges | 2,042Wh | 2,200W | 39.5 lb | $899 | $0.44 |
| Anker Solix C2000 Gen 2 | 26 full charges | 2,048Wh | 2,400W | 41.7 lb | $899.99 | $0.44 |
| Bluetti Elite 200 V2 | 26 full charges | 2,073Wh | 2,600W | 53.4 lb | $899 | $0.43 |
| EcoFlow Delta Pro 3 | 52 full charges | 4,096Wh | 4,000W | 113.5 lb | $2,799 | $0.68 |
| Anker Solix F3800 | 49 full charges | 3,840Wh | 6,000W | 132.3 lb | $1,979.99 | $0.52 |
Shaded rows are our picks. Assumed load: A laptop with a 70 watt-hour battery charged from empty over USB-C at 65W.
Charge over USB-C, not the AC brick
A laptop battery stores DC power. So does a power station. If you plug the laptop’s brick into the AC outlet, the station turns DC into AC with a part called an inverter, and the brick turns it straight back. It is like translating a note into another language and back again. Something is lost each way.
A USB-C cable goes battery to battery with no AC step. In our math, a station delivers 90% of its energy over USB-C and 85% through the AC outlet, before the brick takes its own cut. The inverter can also stay off, so it is not drawing power in the background.
This only works if your laptop charges through a USB-C port. If it has only a round barrel plug, use the AC outlet.
How many watts the port needs
Every USB-C port has a top speed in watts. The laptop asks for what it wants, and the port gives up to its limit. A laptop that charges at 65W takes 65W from a 100W port. A laptop that wants 140W still charges from a 100W port, only slower.
A 100W port is enough for most laptops. Big 16-inch machines that ship with a 140W charger fill fastest from a 140W port. Five of the 15 models here have one, and the smallest is the Anker Solix C300. Size is no guide. Several of the 2,000Wh and larger units stop at 100W.
Check the cable too. It has to be rated for the watts you want. A basic USB-C cable holds charging to 60W no matter how strong the port is.
What 3 full charges means
The table assumes a 70 watt-hour laptop battery, filled from empty. A watt-hour counts energy: one watt, used for one hour. The smallest unit holds 245Wh. After losses, that is 3 full fills. The 768Wh unit gives 9, the 1,000Wh class gives 13, and the 2,000Wh class gives 26.
To run the sum for your own laptop, find its battery size in watt-hours in the specs or on the bottom of the case. Multiply the station’s capacity by 0.9, then divide by that number.
Two things lower the count. A bigger laptop battery is one. Large 16-inch laptops carry close to 100Wh, so a small station gives them about 2 fills. Working while plugged in is the other. The laptop uses power as it charges, so some of the energy never reaches its battery.
None of these can fly
Airline rules cap lithium batteries in carry-on bags at 100Wh, or up to 160Wh with the airline’s approval. The smallest station here is 245Wh. Every model in the table is far over the limit, so none of them can come on a passenger flight.
For one laptop on a plane, a power bank under 100Wh is the right tool. It holds about one laptop charge. A power station is for places you drive to: cabins, campsites, job sites, and your own home in an outage. A laptop is easy to keep going there, because it already has a battery of its own.
Gaming laptops need the AC outlet
A gaming laptop with a 200W or bigger brick cannot get full power over USB-C. Plug its brick into the AC outlet. Check the watts printed on the brick against the station’s output. Three of the four small units put out 300W, which leaves little room above a large brick.
Expect short runtimes. A laptop pulling 200W in a game would empty a 245Wh station in about an hour.
The picks in detail
Anker Solix C300
- 3 full charges
- Laptop
- $249
- $0.86 per Wh
- 9.1 lb
- Weight
You get three full charges of a 70Wh laptop from a 9.1 lb box that costs $249. It is the smallest unit here with a 140W USB-C port, so it fills ordinary laptops and big 16-inch machines at full speed. It reaches 80% from the wall in 50 minutes. It was sold out at Anker's own store at last check, so confirm you can buy it.
What fits
- 140W USB-C port
- 3 full charges at 9.1 lb
- $0.86 per watt-hour, lowest of the small units
What does not
- Sold out at Anker's own store at last check
- 1.3 lb heavier than the River 3
Sold out at Anker's own store when we checked. The price shown is its last list price.
EcoFlow River 3
- 3 full charges
- Laptop
- $239
- $0.98 per Wh
- 7.8 lb
- Weight
At 7.8 lb and $239, this is the lightest unit and the lowest price of the 15, and it gives the same 3 full charges. Its USB-C port tops out at 100W, which is as much as most laptops will take. EcoFlow's own US store was not listing it at last check, so stock may be limited. If you cannot find it, the 8.2 lb Jackery Explorer 300 v2 gives the same 3 charges for $299.
What fits
- 7.8 lb, the lightest of the 15
- $239, the lowest price of the 15
What does not
- Stock may be limited
- 100W port is slower than a 140W laptop wants
EcoFlow's own US store was not listing this model when we checked, so stock may be limited. Confirm you can still buy it before you plan around it.
Bluetti AC70
- 9 full charges
- Laptop
- $359
- $0.47 per Wh
- 22.5 lb
- Weight
Nine full charges is more than a week of one refill a day. The AC70 also costs far less per charge than the small units, about $40 against $80 or more. Its USB-C port tops out at 100W. The 500W solar input gives a panel plenty of room to keep it filled at a cabin. The downside is 22.5 lb, so it stays in the car or on the floor.
What fits
- 9 full charges
- $0.47 per watt-hour
What does not
- 22.5 lb
- USB-C port is 100W, not 140W
Coupon deals well under this price have appeared.
Anker Solix C1000 Gen 2
- 13 full charges
- Laptop
- $499.99
- $0.49 per Wh
- 24.9 lb
- Weight
A gaming laptop with a 200W or larger brick has to use the AC outlet. This unit's 2,000W output is the most in the 1,000Wh class, so it has room for several bricks and a monitor at once. For ordinary laptops it gives 13 full charges through a 140W USB-C port, enough to share with a small crew. It costs $499.99, or $0.49 per watt-hour, and refills from the wall in 49 minutes.
What fits
- 13 full charges
- 140W USB-C and 2,000W AC output
What does not
- 24.9 lb
- The Bluetti Elite 100 V2 gives the same 13 charges for $11 less
Anker's list price is $599.99. It has sold for under $430 at other retailers.
Verdict
Buy the Anker Solix C300 if you want 3 charges and a port fast enough for any USB-C laptop. Pick the EcoFlow River 3 if weight comes first, your laptop takes 100W or less, and you can find one. Choose the Bluetti AC70 for a week at a cabin, and the Anker Solix C1000 Gen 2 for gaming laptops or a shared desk. For a flight, buy a power bank under 100Wh. None of these are allowed on board.
How these numbers were worked out. Runtime = battery capacity × efficiency ÷ average watts. We use 85% efficiency for AC outlets and 90% for DC and USB ports, because some energy is lost as heat on the way out. A model is marked "can't run it" when the device needs more watts than the outlet gives, or a bigger startup surge than the unit is rated for. Your own device may draw more or less than our assumed load, so treat these as estimates. Prices were checked on 2026-10-04 and change often. Full method
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