http://www.orcatorch.com/product/1469427210.htmlOrcaTorch recently released a patented 18650 battery with built-in Micro USB port. With the use of only one USB cable, the battery can be charged by any devices with a USB port in any place and any time, which makes battery charging fast and convenient. Meanwhile, using the imported original 3400mah large capacity Panasonic cell, and equipped with multiple-protection circuit, the battery is safe and reliable, so you would not worry about the possibility of battery explosion any more.