Meet River: a portable backup power solution with a bunch of ports to charge your favorite gadgets. It has enough juice to charge your drone, GoPro, laptop, and phone multiple times. It can also power a projector or refrigerator over 10 hours. River has 116,000 maH battery capacity and holds charge for a year.
The unit has a water resistant case. It has 4 quickcharge ports, 2 DC outputs, 2 AC outputs, and a built-in inverter. It comes with safety features to prevent power surges and overheating. With a 50W solar charger, you can turn River into a solar generator. You can pre-order yours for $499.