Portable power for Dell Notebooks and tablets The Dell™ Power Companion lets you bring extra power with you, so you can be more productive. This handy device powers select Dell Notebooks as well as up to two smartphones, tablets or other USB-enabled devices. It features includes 65 Wh 6 cell battery that provides reliable power when you're on the go and is easily charged using your Dell power adapter. Moreover, it is lightweight and compact, so you can stay powered on-the-go without adding bulk to your bag. With all this features and more the two USB charging ports let you simultaneously charge a pair of mobile devices in addition to your Dell notebook. What’s in the box Dell Notebook Power Bank Plus (18,000 mAh) 2x Dell Notebook Charging Cables Note: Dell power adapter is required for charging the Notebook Power Bank Plus (not included in the box) It can be charged using your Dell power adaptor supplied with your compatible Dell system if it has a barrel (4.5mm or 7.4mm) connector