Can the Westinghouse 155Wh run your small devices and how long will it last?

For that answer to hold, your device must stay within 150W and use 120-Volt power. We compared the portable power station options with that runtime profile in mind.

Westinghouse 155Wh powers small devices for limited runtimes

Westinghouse 155Wh uses lithium-ion batteries, a 120-Volt AC inverter, and two household outlets, so it suits phones, lights, laptops, and some CPAP setups more than high-draw appliances. It powers up to 40 hours of lights, 3 hours of TV, 14 smartphone charges, 3 laptop charges, 6 drone charges, or 2 nights on select CPAP devices. The real-world runtime is lower than the raw watt-hour rating once DC-to-AC conversion losses are accounted for, so treat 155Wh as stored energy, not usable AC runtime. Like a fuel tank that never reaches the wheels unchanged, some energy turns into heat before it reaches your device. The 4.5 average across 2,094 ratings supports that this is a widely used small-capacity option, but the specs still decide whether your load fits. The product weighs 3.75 lbs., and that matters for a portable power station buyer because a light unit only helps if the outlets and voltage match your gear.

What to Check Before Buying the Westinghouse 155Wh

• Check whether your device stays under 150W continuous draw. The surge figure is not stated here, so motor loads and compressor starts need extra caution.
• Check whether your equipment needs a pure sine wave inverter. That detail is not stated, and sensitive electronics can care about it.
• Check your plug type and voltage. This model uses 120-Volt household outlets, so regional compatibility matters before you buy.
• Check whether you need pass-through charging during use. The recharge time is 6 hours, but simultaneous charging and powering is not stated.
• Check the size of your own storage space. At 3.75 lbs., this is light, but the footprint still has to fit your bag, trunk, or shelf.

Where the Westinghouse 155Wh Fits Among Portable Power Stations

Westinghouse 155Wh sits in the small backup class, not the higher-capacity group that starts around 300Wh and serves longer outages. If you need a station for phones, lights, a laptop, or select CPAP use, this size makes sense. If you want to run kettles, microwaves, or other heavy loads, you should look at larger AC output and much higher stored energy instead. The two 120-Volt outlets and 9-device charging limit help for mixed small gear, but they do not change the 150W ceiling. Choose a larger format if your use case depends on long runtime or higher startup demand.

If you are planning a trip, you should compare the best portable power station for travel to find a mobile solution that fits your luggage.

When the 3.75 lb portable power station makes sense

Choose this model if you want a 3.75 lb. portable power station for small electronics, short backup use, and occasional travel charging. Skip it if your devices need more than 150W, longer runtime, or an inverter type that is not stated here.

Reviewed by the Price Review HQ editorial team. Price Review HQ writes these guides from the 200 most-reviewed portable power station listings in our retail dataset, not from manufacturer copy.