The 6 models in this class

Every power station in the data with a rated capacity under 400 Wh, smallest first. Price per Wh of rated capacity runs from $0.93 to $1.18 in this class, with prices from the makers' US stores in October 2026.

Power stations under 400 Wh
Power stationCapacityOutputSurgeWeightPrice
BLUETTI Elite 10 Mini128 Wh200 W300 W4 lb (1.8 kg)$119$0.93 per Wh
Jackery Explorer 240 v2256 Wh300 W600 W7.7 lb (3.5 kg)$249$0.97 per Wh
EcoFlow RIVER 3 Plus286 Wh600 W1,200 W10.4 lb (4.7 kg)$299$1.05 per Wh
BLUETTI Elite 30 V2288 Wh600 Wnot published9.5 lb (4.3 kg)$279.99$0.97 per Wh
Jackery Explorer 300 v2288 Wh300 W600 W8.2 lb (3.7 kg)$299$1.04 per Wh
Goal Zero Yeti 300297 Wh350 W600 W13.7 lb (6.2 kg)$349.95$1.18 per Wh

Runs on every model: 27 of 79 appliance types

Each appliance on its own, with nothing else plugged in. The running time is the median over the 6 models, with the shortest and longest beside it; loads used for minutes a day show minutes of use.

Appliances every 300 Wh class model runs, at 85% efficiency
ApplianceWattsMedian running timeShortest to longest
LED bulb, 60 W equivalent (800 lumens)8.5 W28.7 h12.8 h to 29.7 h
Nebulizer (compressor or mesh)9.6 W25.4 h11.3 h to 26.3 h
CPAP machine (no humidifier)11 W22.2 h9.9 h to 23.0 h
Camera battery chargerestimate15 W16.3 h7.3 h to 16.8 h
Computer monitor, 27 inch17 W14.3 h6.4 h to 14.9 h
Phone charging20 W12.2 h5.4 h to 12.6 h
Tablet charging20 W12.2 h5.4 h to 12.6 h
BiPAP (bilevel) machine23 W10.6 h4.7 h to 11.0 h
LED string lights (patio or decorative set)estimate24 W10.2 h4.5 h to 10.5 h
Air purifier (room air cleaner)25 W9.8 h4.4 h to 10.1 h
Wi-Fi router and modemestimate28 W8.7 h3.9 h to 9.0 h
Ceiling fan30 W8.1 h3.6 h to 8.4 h
Starlink Mini dish33 W7.4 h3.3 h to 7.6 h
Boiler circulator pumpestimate44 W5.5 h2.5 h to 5.7 h
CPAP machine with heated humidifier56 W4.4 h1.9 h to 4.5 h
Thermoelectric cooler (12 V)60 W4.1 h1.8 h to 4.2 h
Power tool battery charger (18 V or 20 V class)63 W3.9 h1.7 h to 4.0 h
Laptop (while charging)65 W3.8 h1.7 h to 3.9 h
Tankless gas water heater (electrical draw)79 W3.1 h1.4 h to 3.2 h
Desktop PC (office tower, no monitor)estimate81 W3.0 h1.3 h to 3.1 h
TV, 55 inch LED (LCD)82 W3.0 h1.3 h to 3.1 h
Starlink Standard dish with router88 W2.8 h1.2 h to 2.9 h
RV fresh water pump (12 V)90 W2.7 h of use1.2 h of use to 2.8 h of use
Portable oxygen concentrator95 W2.6 h1.1 h to 2.7 h
Drone battery charger100 W2.4 h1.1 h to 2.5 h
Projector (home or portable)102 W2.4 h1.1 h to 2.5 h
Box fan (20 inch)125 W2.0 h52 min to 2.0 h

Runs on some models: 17 appliance types

Here the output or the surge rating decides. The running time is the median over the models that run it.

Appliances only some 300 Wh class models run
ApplianceWattsModels that run itMedian running time
Portable compressor fridge (12 V)49 W500 W to start5 of 6all but the BLUETTI Elite 10 Mini19.6 h
Mini fridge (compact refrigerator)75 W500 W to start5 of 6all but the BLUETTI Elite 10 Mini8.8 h
Pellet stove180 W425 W to start5 of 6all but the BLUETTI Elite 10 Mini1.4 h
Pellet grillestimate250 W5 of 6all but the BLUETTI Elite 10 Mini59 min
Slow cooker265 W5 of 6all but the BLUETTI Elite 10 Mini55 min
Refrigerator (modern, full size)275 W1,000 W to start1 of 6the EcoFlow RIVER 3 Plus4.5 h
Refrigerator (older, 1990s to 2010)275 W1,000 W to start1 of 6the EcoFlow RIVER 3 Plus3.3 h
Oxygen concentrator (home, stationary)290 W5 of 6all but the BLUETTI Elite 10 Mini51 min
Chest freezer300 W750 W to start1 of 6the EcoFlow RIVER 3 Plus7.3 h
Upright freezer300 W750 W to start1 of 6the EcoFlow RIVER 3 Plus4.9 h
Dehumidifier (35 pint)351 W2 of 6the EcoFlow RIVER 3 Plus and BLUETTI Elite 30 V242 min
Gaming PC (tower, while gaming)estimate370 W2 of 6the EcoFlow RIVER 3 Plus and BLUETTI Elite 30 V240 min
Rice cooker500 W2 of 6the EcoFlow RIVER 3 Plus and BLUETTI Elite 30 V229 min of use
Window air conditioner (5,000 BTU)525 W1,050 W to start1 of 6the EcoFlow RIVER 3 Plus28 min
Gas furnace blower fan (1/2 HP)550 W1,200 W to start1 of 6the EcoFlow RIVER 3 Plus27 min
Countertop blender600 W700 W to start1 of 6the EcoFlow RIVER 3 Plus24 min of use
Electric drill (corded)600 W1,200 W to start1 of 6the EcoFlow RIVER 3 Plus24 min

Out of reach: 35 appliance types

No model in this class powers these on its own.

Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer. For a list of appliances running together, use the runtime calculator.

Side by side in this class

Questions

How long does a 300 Wh power station run a refrigerator?
About 4.7 h for a typical modern full size refrigerator: 255 Wh usable divided by its 54.2 W average draw. 1 of the 6 stations in this class can start its compressor, with a median of 4.5 h on a full charge.
Can a 300 Wh power station run a space heater?
No. A space heater on high draws 1,500 W, and the most output in this class is 600 W. Even with the output, 300 Wh lasts about 10 min at that draw.
How many watts can a 300 Wh power station power at once?
Capacity and output are separate ratings. In this class continuous output runs from 200 W to 600 W; everything plugged in at the same moment has to stay under that figure, and a motor start has to stay under the surge rating. The watts and watt hours guide explains the difference.