Bluetti

Bluetti is a manufacturer of portable power sources (also known as portable solar generators) for home, office and outdoor use. Their products include the Bluetti AC50S, AC200P, EB150, EB240, EB55 line and many more. Depending on the model, the units can deliver between 300 and 2000 watts of pure sine wave power, and have built-in inverters, charge controllers, and more.

One of the features of Bluetti products is their ability to be charged by solar panels. The company also makes solar panels that can be used to charge their portable power supplies. Thanks to this feature, Bluetti products can be especially useful when traveling to nature, on picnics or as a backup power supply in case of an accident.
Company official websites: https://www.bluettipower.eu/, https://www.bluettipower.com/