Battery seems to be defective, will allow only two hours work time after fully charging. Dell and independent reviewers indicate that the battery will remain charged for up to 13 hours (when new). This is a refurbed device (not new) but battery life should be longer than two hours! Previous laptops I have owned hold charge much longer than two hours when battery is viable. When batteries reached the point of reduced work time such as this I have replaced those batteries. That is what will have to be done with this Dell Latitude7480 however I do not feel that a new battery should be at my expense. I can replace the battery but this matter leaves a bad taste in my mouth. At this juncture I will not be making further purchases from this seller and will reevaluate potential future purchase from Amazon.......I purchased and installed a new battery in the device. It now operates as it should have when I received it.  The battery that was in the device when it arrived at my door was faulty. I purchased this device from this seller based on reviews on Amazon site. This experience merits a poor rating of this seller. Dennis