Dark Energy makes nearly indestructible power products for outdoor, military, and tactical use. Poseidon Pro is an upgraded portable charging system that is fully waterproof (IP68), drop-proof, and crushproof, and it is certified to military standard MIL-STD 810G. Designed for extreme use, it has survived shotgun blasts, being frozen, and run over by a truck, and can be used in -10 degree to 140 degree weather without losing its charge. Poseidon charges a smartphone three to five times and holds charge for over three years in standby, making the 10,200 mAh highly powerful for being the size and weight of an iPhone. Two outports (1 USB-C and 1 USB-A) offer the ability to charge multiple devices at the same time.