If you need quality USB charging for your smartphone battery, then the Best 6 Port 50W Smart USB Charger Black-US is the right choice. This USB charger is designed to rapidly charge up to six devices simultaneously. It features intelligent power management that is intelligent enough to detect the power needs of each device, and swiftly allocates power accordingly. This USB charger uses multi-voltage support for intelligent charging. It can deliver between 5V and 20V, which means it can charge most of todays smartphones and tablets. The charger includes over-current protection, short-circuit protection, and more, to ensure your device is charged safely. The whole charger is made of top-notch quality materials such as aircraft-grade aluminum and PC+ABS. The aluminum exterior is very solid and ensures effective heat dissipation, so it wont overheat even when youre charging multiple devices at the same time. It measures 4.5 x 3.7 x 1.1 inches and weighs 13.9 ounces, so its light and compact enough to be taken on a trip. This USB charger is not only of great quality, but also very affordable. The Best 6 Port 50W Smart USB Charger Black-US offers you a convenient way to charge up to six devices simultaneously, all for a fraction of the price of buying six individual chargers.