New Delhi, Sept. 28 -- Power banks for laptops can be useful when you need extra battery life while travelling, working remotely or during power cuts. Unlike standard phone power banks, laptop-compatible models typically offer higher-capacity batteries and USB-C Power Delivery (PD) output to support laptops and other demanding devices. When choosing a power bank, check its capacity, maximum wattage, USB-C PD support, number of ports and charging speed.Models offering 65W or more can work with many everyday laptops, while higher-wattage options may be more suitable for performance-focused machines. It is also worth checking your laptop's charging requirements before buying. A compact, high-output power bank can provide added flexibility wi...