Never let your phone die. The Nitecore NB10000 power bank has an extraordinary 10,000mAh battery that can charge a base iPhone 11 or a Samsung s10 two times. Embodying all this power in a solid carbon fiber body frame, the NB10K is 40 percent lighter than conventional power banks, while smaller and thinner than a phone with a sleek modern minimalist design. The NB10000 is the ultimate portable backup battery charger for road warriors, outdoor enthusiasts who enjoy trail running, hiking or camping or first responders who are on an extended search and rescue mission. It is also a great additional to your emergency prep kit or bug-out-bag. Dual USB/USB-C dual QC output ports allow you to fast charge two devices at once with maximum compatibility with all your electronic gears. When quick charge is not needed, the NB10000 has a one-touch low current mode for delicate devices such as Bluetooth headphones and smart watches. The carbon fiber case makes the NB10000 highly resistant to puncture, abrasion and impact. Additionally the NB10k is IPX5 rated water resistant and comes with a slew of safeguards against short-circuit, overcharge, over discharge or overheat.