Originally posted by papadan
And Ridgid batteries are not the only ones that are slide packs. Milwaukee, Skil, Porter Cable, Black & Decker, some DeWalt, some Bosch. Slide packs and "neck" batteries both have their advantages and disadvantages. Neck batteries are designed to release upon sudden impact, such as in a fall. The impact energy is dispersed through the two pieces rather than being concentrated at the locking point. Downside is that less secure copnnection to the tool. Slide packs are on more securely but make a weak point during a fall. The tool will take the full impact during a fall.