An off the grid portable power kit tailored to those who love the outdoors. With CTEK’s new CS FREE, you are now able to take power with you where you go. The CS FREE is much more than just a conventional battery charger, it is the world’s first truly portable power. With the CS FREE, you have enough power to start a car from a flat battery as well as charge your portable electronics using its built in USB and USC-C ports. The unit can be recharged using a conventional 110 outlet, a solar panel, sig plug, or from a 12V service battery. All together this gives you the ability to take power with you wherever your adventures might lead you!