Even though it says it was fully tested and validated to be working, as soon as we received this and started to charge it, we knew it was bad. Not sure how something like this would have got past such rigorous testing but the laptop had an issue with the battery which prohibited it from being charged. Attached images show this quite clear. You can see that after 20 or so minutes, the battery does not charge not to mention the warning that says there is an issue with the battery.Disappointed with the outcome but can't say I am not surprised. Not sure I will look at purchasing something like this again.