DEWALT DCBP520C Powerstack 20V MAX Battery Kit

Trying Powerstack out in my older (not brushless) 6.5 in circular saw for a deep cut I can tell that his battery delivers more power and the saw is able to power through the material better. Also, in my 20v blower that I use on my driveway after mowing the battery does a much better job powering the blower at full power before stepping down and dyeing rather quickly as opposed to the older XT 5ah battery that would dwindle down over what felt like the last 25% of the battery to much lower levels, the Powerstack went strong then started to drop off at maybe the last 10% or even less. These do cost more and the costs add up but this combo that I am reviewing often has the battery and 5ah charger for less than anywhere else that I have seen. You can always sell the charger if you don't need it or put it in another location where its handy so I think its the way to go to get the Powerstack. Powerstack pack is a little heaver by about 4.2 oz. and though its slightly slimmer (top to bottom) it has a larger footprint by about 1/4 inch wider and 5.8 inch longer across the base. Also, the power stack also has a grippy rubberized bottom that will not slide around like the XR pack with a smooth plastic base. I'm a bit disappointed that the Powerstack is bulkier than I expected but it does a great job delivering power and I look forward to a larger 6ah or 8ah pack in the future.