Charge your compatible Dell Notebook or Ultrabook with the PW7015M 12,000mAh Power Companion Rechargeable Backup Battery from Dell.
This 4-cell rechargeable battery backup has a large 12,000mAh capacity to charge a laptop, as well as up to two USB devices at the same time at up to 2.1A.
Five LED indicators accurately inform you of how much charge is left in the battery, so you know when to recharge it.