No spec — no matter how appealing — should ever be viewed in a vacuum and the decision to actually commit your time and money to a consumer electronics investment will hopefully have been informed by a multitude of factors. From design to features; performance to comfort, it’s always best to inject your brain with all aspects of a product, swirl them around a bit and wait to see which ones rise to the top for you. Having said that, battery life is the one metric that truly affects all other aspects of a tablet’s functionality. Let’s be real: if you run out of battery life, there’s not much you can do with a dead slate. So, I’ve compiled a list of the six tablets — culled from a collection of many more — that lasted the longest during CNET Labs’ tests.