One caveat is that the battery life on used or refurb laptops tends to be quite poor, because they don't usually replace the battery with a new one. All they gu

One caveat is that the battery life on used or refurb laptops tends to be quite poor, because they don't usually replace the battery with a new one. All they guarantee is that it's tested/working, which can mean battery life as short as 15-20 minutes, just so long as it holds enough of a charge to turn on and run for a few minutes unplugged. Sometimes you get lucky and it might be hours, but I wouldn't expect anything like 6+ hours. So I usually add on the cost of a new battery when comparing, unless you're planning to use it as a "luggable" that's mostly plugged in.