It’s been over a year since Microsoft has releasedits Surface Pro 4, and the lack of a 2016 refresh means there’s room for a new king of detachable two-in-one laptops. The Lenovo Miix 510 looks like a worthy successor to the crown. The durablealuminum design is understated, yet attractive. The display is colorful with a clear picture, and under the hood is a competitive collection of specs at nearly half the price of the Surface Pro 4.With all of that, you’d expect the Lenovo Miix 510 to be a shoo-in for the next must buy detachable. Unfortunately, all of that is held back by lacklusterbattery life. The Lenovo Miix 510 runs incredibly well, but it doesn’t run for very long.