Nitecore Summit 10000 Low Temperature Resistant Li-ion Powerbank Power for the Freezing Cold Keeping your gear alive is all the more important when you're out in the snow, so make sure you have the Nitecore Summit 10000! With a massive capacity of 10,000mAh, this power bank is perfect for recharging flashlights, phones, and cameras. This makes it perfect for keeping your devices alive while you're out mountaineering, skiing, or photographing frozen landscapes. Built-in Heating System To keep your power bank performing at its peak in temperatures as low as -40°C, the Summit includes a PI heating system that always activates at 0°C / 32°F with dual temperature detection modules. Combined with carbon fiber, the thermal insulation preserves up to 70% of this product's total capacity so that you're never without power. The mode indicator will illuminate red when this feature is activated. Unibody Shell The carbon fiber unibody shell makes this power bank super lightweight and durable enough to survive heavy impacts from 1.5m high. This means that even if you drop it on ice or even rocks, it will still be fully functional, and it won't create any excess bulk that will weigh you down while hiking or camping.