The Dell Power Companion lets you bring extra power with you, so you can be more productive. This handy device powers select Dell Notebooks and Ultrabooks, as well as up to two smartphones, tablets or other USB-enabled devices. It features includes 18,000 mAh 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. Portable power for Dell Ultrabooks, 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 and Ultrabooks, as well as up to two smartphones, tablets or other USB-enabled devices. The Dell Power Companion is lightweight and compact, so you can stay powered on-the-go without adding bulk to your bag. Designed to charge devices during storage This compact power solution fits seamlessly into your mobile lifestyle by fitting neatly into your laptop case or bag. The Dell Power Companion is designed to deliver in-bag charging, so your devices are charged when you need them. It's also specifically designed to fit into the Dell Premier Backpack and Dell Premier Briefcases. USB charging to power additional devices The Dell Power Companion helps keep all your mobile devices charged and ready to go, including smartphones, tablets and more. Two USB charging ports let you simultaneously charge a pair of mobile devices in addition to your Dell notebook. 18000 mAh battery provides reliable, powerful backup power The compact and convenient Dell Power Companion features an 18000 mAh 6 cell battery that provides reliable power when you're on the go and is easily charged using your Dell power adapter. A five-segment LED clearly displays how much power is left, so you can plan accordingly. What's in the Box - Dell Power Companion (18000 mAh). - 2x Dell Notebook Charging Cables.