Dark Energy designed this ultra-rugged portable charger and light to handle anything and everything. The Poseidon is completely waterproof, virtually indestructible, and comes with a water-resistant cable wrapped in twenty feet of paracord. With 10,000 mAh of portable power, and two charging ports capable of a combined 3.4 amp output, there is no better way to keep all your devices charged in the outdoors or while hunting. It takes about 5 hours to charge the Poseidon from empty to full with a 2.1 amp power supply. The Poseidon will hold its charge for approximately a year, this makes it a great addition to your emergency survival kit. The portable charger has a life time of around 500 charges, this means plenty of back up power to get you up and running again.