The PowerOak K2 Adapter for K2 Powerbank is an essential accessory for your power needs. With an adjusted output of 16.8V and 2.5A, this adapter delivers reliable and efficient performance. Designed to seamlessly work with the PowerOak K2 Powerbank, this adapter provides optimized energy conversion for various applications. The K2 power bank has a plug of 3.5 x 1.35 mm, ensuring compatibility with various devices. Furthermore, the K2 power bank fully charges within 6-8 hours, allowing you to quickly return to uninterrupted power, whether you're on the go or at home.