Mobile outdoor power supply duration

A portable power station's lifespan is largely determined by its battery cycle life. This means the amount of times it can be charged and recharged before capacity drops.

For example, an OUPES portable power station with a 1,000Wh capacity theoretically supplies 1,000 watts for one hour or 100 watts for ten hours. However, this is only the theoretical limit—real-world usage often differs. To estimate runtime, you must first determine the power draw of your devices.

Every portable power station comes with a rated capacity, typically measured in watt-hours (Wh). This figure represents the total amount of energy stored in the battery. For example, an OUPES portable power station with a 1,000Wh capacity theoretically supplies 1,000 watts for one hour or 100 watts for ten hours.

This means the amount of times it can be charged and recharged before capacity drops. Most modern power stations, including Pisen's models, use lithium batteries, which typically last hold 500 to 1,000 charge cycles (battery cycle life) before their capacity drops to around 80%.

Put it this way: the highly popular Pisen Portable Super Fast Charging Outdoor Power Station 1000W can charge your smartphone around 100 times in one go - which means, theoretically, the power station can charge your phone up to 100,000 times before it even starts to drop capacity.

If you're not using it, store your power station in a cool, dry place with a 50% charge. (Remember, don't store it anywhere where it will overheat or freeze.)