To activate C300 DC Portable Power Station for the first time: Recharge with an 18W or higher USB-C wall charger, such as an Anker USB-C charger or laptop charger. Note that only the USB-C2 and USB-C3 ports can be used. This 288Wh) battery delivers 300W and includes two 140W two-way USB-C fast charging ports. Power all your tech on the go with versatility, no matter the connection type. Attach the strap (sold separately) with a 30% smaller power station for complete portability. Give your journey endless charging with up to 100W solar recharging. We recommend 100W or 60W Anker Solar Panel. This power station is not compatible with Anker SOLIX PS30 (or other 5V~3A USB-C panels), PS200, PS400. Fast Recharge to 80% in an hour minutes with the dual PD 3.1 USB-C port. You can also use solar panels or your car. What is in the Box: Anker SOLIX C300 DC Portable Power Station, USB-C to C Charging Cable, Safety Manual, and Warranty Info