There is a very important difference in terms of supply. A UPS works in 1ms, so it’s practically instantaneous. What does this mean? If the power goes out at home, this device will maintain the energy that the computer, the router or the device you are using needs to function. They will not turn off and, therefore, you will not lose work that you are doing, nor will you have problems.
The UPS, as soon as it detects a power failure, will quickly use the battery and the transfer time will be minimal. It’s going to be just right for an uninterruptible power supply. It’s continually pouring stored electricity into connected devices, so it’ll manage to keep them powered up in the event of a problem. Depending on the model, you will have more or less capacity to keep the devices on for more or less time. There are those that barely serve to keep the devices on for 1 or 2 minutes, enough to turn them off safely, while other models can last up to several hours.
Instead, a portable power station act different. In this case, you need about 50ms to act. It is too long, so it will cause power outages and the PC to shut down. You could lose work, have component problems, and everything else that involves a device shutting down suddenly.
As you can see, a portable power station does not act the same as a UPS and the response time will be longer. Although that does not mean that they are not useful devices in case of needing emergency power, it will not fulfill the objective of always keeping the devices on in the event of a blackout.
Power source type
Another difference is what each option is primarily designed for. A UPS is clearly a device that acts as a power backup in case of a supply cut. It will work automatically and its mission is to keep the devices you have connected on without interruptions.
In contrast, a portable power station is primarily designed to function as a main power source. That is, we can use it if we go camping and need to charge devices, connect the computer or any device. However, it can also act as a backup power source, beyond being the main one.
Mobility
You can also find differences in terms of the mobility or portability. UPSs are mainly intended to remain in a fixed location. For example, you can place them at home or in an office. You can connect the router, the computer and the main devices that you want to always have a backup to work in case of interruptions.
On the other hand, portable power stations, as the name suggests, are more designed to be easily transported. In fact, they are usually quite manageable and you can keep them in the car, take them on a trip or use them in any situation where you need to have electricity.
Options to upload
Typically, portable power stations have multiple options for charge devices. They usually have several USB ports, as well as plugs to connect electrical appliances or any device. Depending on the model, you will be able to charge them with solar energy, with the car battery or simply at home.
A UPS usually has several traditional plugs and they will not have so many alternatives. However, it will depend on the model. They are more designed to plug in appliances and appliances, rather than to charge devices, for example.
In short, as you can see there are differences between a UPS and a portable power station. Mainly, the one that you should take into account is that a UPS can react in just over 1ms, to keep the equipment on without problems, while the other alternative can take over 50ms and there will be an interruption.
