Lenovo Power Bank for USB-C Laptops Two mobile devices and a laptop can be charged with a 14000mAh battery. It takes two hours to fully charge. Standby Life for 365 Days: The Lenovo 14,000mAh USB Type-C Laptop Power Bank recharges your compatible laptop and mobile devices while you're on the go. This portable power bank is compatible with certain Lenovo and ThinkPad slim-tip and USB Type-C powered notebooks that do not have separate graphics.