We use two types of batteries in our portable power stations. One is the NMC ternary lithium-ion battery. Its positive electrode material is nickel cobalt manganese. It offers a nominal voltage of 3.7V. The cycle performance is average, and the discharge rate is high. This type of battery is in our 300-700W power stations. For 1000W power stations, we use LiPeO4 batteries that are more stable. Moreover, these are eco-friendlier than other types of batteries. 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.