A portable power station is a removable, rechargeable battery device that can provide power to devices such as mobile phones, computers, appliances, and lamps. Portable power stations can usually be charged from mains electricity, a car power plug, or a solar panel. Portable power stations can provide power to various types of electronic equipment. The duration of a portable power station depends on its capacity, equipment needs, usage, and other factors. The portable power station is designed to be rechargeable, and the portable power station has a certain charging life. Portable power stations are rated between 300 and 1,000 charges, depending on model and usage. The portable power station is suitable for various occasions that need power, such as camping, outdoor living, travel, emergency backup power.Hope these answers help answer your questions about portable power stations. If you need more information or have other questions, please let me know RUXIAN Energy Storage. Capacity is usually calculated in terms of total watt-hours (Wh) or ampere-hours (Ah). Every power station has different specifications.