DieHard 300-Watt Lithium-ion Portable Power Station/Solar Generator (ESMDH2000101) EachLightweight, portable, lithium ion power station is equipped with 300 watts to power cell phones, laptops, fans, CPAP machines and other small devices while working on the go, enjoying outdoor activities or during power outages. Power station features eight charging output ports, ensuring long lasting power for a variety of devices. Plug in an optional solar panel (not included) to generate true green power wherever you go. Application Usage: Cellular