The quality of the sine wave output from a portable power station matters a lot. If the sine wave is not pure, it might damage sensitive equipment and devices, such as laptops and mobiles. A modified sine wave inverter is also called a quasi-sine wave inverter. The output wave is not like a pure sine wave; it is a square wave that undergoes abrupt changes. These inverters are cheap, but they can harm sensitive electronic devices. On the other hand, the output of a pure sine wave inverter is near to the actual sine wave. It does not harm electronic devices; however, it is a bit more costly. We use only pure sine wave inverters in our portable power stations. Thus, our products are safe to power all kinds of delicate and sensitive electronic devices. We use optimal quality batteries that have a long life span. Our portable power stations have a life expectancy of 3-6 years, depending on the cycle life, how it is used, how it is maintained, and various other factors.Secondly, some devices or equipment require instant peak or surge power at the start, and then their consumption is dropped down to the rated power. It is necessary to look at the surge/peak power to know whether such devices or equipment can be powered by the power station or not. The surge/peak power indicates the maximum power the power station can provide. For instance, our 1000W portable power station can provide 2000W of surge or peak power. It shows the devices that need instant peak power of below 2000W can be easily powered using the power station.