Dewalt DCBP518 18V XR 5.0Ah Powerstack Li-Ion Battery

Moving on from the 1.7Ah battery, the PowerStack range now includes a 5.0 Amp-hour battery pack, to bring longer runtime as well as impressive output power to more demanding tools like circular saws, planers and blowers. Not only does this feature the increased power output (50 percent more than the DCB184), but as it is less focussed on compactness like the 1.7Ah, this allows it to give a longer runtime too. They kept the rubberised bottom of the new PowerStack range, one of the more favoured features. DeWalt are the first major tool manufacturer to use pouch-cells in their batteries, which just makes more sense than the cylindrical packs that everyone else is using. A stack of cylinders naturally has wasted space between them. The pouch cells not only use space more efficiently, but also more efficiently dissipate heat, resulting in less frequent overload cut-outs. 

Uses stacked pouch cells instead of cylinders.