The Fenix ARB-L18-2600U 18650 Battery has a built in micro USB port making it ready to charge easily. NOTE: USB cable is sold separately. This item is priced and packaged as one battery . Shipping Note: Lithium ion batteries are considered "dangerous goods" per US transportation regulations and can often only be transported via ground shipment. Orders containing loose batteries will typically take much longer than predicted to be delivered. Delivery times of 14+ days are not uncommon.