With a cell capacity of 256 watt-hours, the Anker 521 portable power station is designed to power small devices like a phone, laptop, or any other USB powered gadget. Stay connected in case of an emergency or just fuel a few devices at your next campsite or tailgate. On a full charge, it can completely recharge a phone about 20 times, a laptop about four times, or power a lamp for up to 16 hours. Power station can be charged through an AC outlet, vehicle power output, or a portable solar panel (sold separately). Equipped with an LED light bar, for an extra light source while on the go.