Have peace of mine with off grid power with the Anker PowerHouse Portable Power Supply. Packed with an incredible 120,600mAh (400Wh) of power, this single device has enough juice to charge your smartphone for over a month. The PowerHouse has sockets for every item you need including four fast-charging USB ports, a 12v car socket, and an AC outlet. The high density lithium ion battery keeps the PowerHouse compact enough to take with you everywhere. Incredibly, this device can recharge your smartphone 40 times and your laptop 15 times and also power a mini fridge for seven hours and a 15v light for over 100 hours. Like all Anker products, the PowerHouse is built with premium materials such as an aluminum shell that is shock resistant and impact tested to keep the battery safe.