If you frequently encounter extreme weather conditions, the FROST SUMMITS Smart Solar Charger is for you. With this gadget, you’ll be able to keep your essential devices powered. Its 5,000 mAh battery charges even when the weather outside is as cold as -58 degrees Fahrenheit. So you’re free to climb up to the top of Everest without worrying that you won’t be able to capture a photo. Additionally, this outdoor power bank includes a 7.2-watt high-efficiency solar charger. And this..