Weighing only 3.6 kg, the bluetti ac2a redefines portable power! This solar generator may be tiny, but it's mighty! Experience lightning-fast charging speed, higher-than-average solar input, lifting power capability, and seamless compatibility with bluetti's expansion battery, all in one package. It outshines previous models in every way. With the ac2a, you'll enjoy the perfect blend of safety, durability, and versatility. Take your outdoor adventures to new heights!