Dakota Powerbox 135 Designed as a waterproof and submersible mobile power station for use in extreme environments the Powerbox 135is one battery to power many passions Jump start a car or boat engine with over 1000 cold cranking amps CCA ofengine starting power Power your devices and smaller appliances with 135 amp hours 1728 watts of deep cycle DakotaLithium energy Efficiently charge phones laptops camera equipment TVs monitors portable fridges medical devicespower tools and more via the 2 AC wall plugs or the 6 USB ports Connect jumper cables to the automotive gradebattery posts to access up to 1000 CCA of engine starting power or use the waterproof binder posts to run high ampapplications like 12V trolling motors All in one waterproof lithium battery so light that it floats