You quickly get used to the backlash of the battery. Having worked with a heavy tool such as a revolving grinder with an unbalanced brush, there is a chance to get uncomfortable sensations from the fact that when the handle is squeezed very strongly, the body slightly "wobbles", or something - the halves of the body are slightly squeezed and "grind". Backlash battery does not bother at all. I would like the 4th flashlight mode "without a flashlight" - but in principle it is not provided.