In this video I compare the 20v Power stack batteries vs my 20v XR 5AH battery.
I primarily bought the DCF911 to combine it with a 20 V power stack. Ive been using the 12v dvf901 and its great. I mainly wanted exended battery life by using the DCF911 with a 20v battery. This is where I think the power stack batteries shine. They are much lighter and are physically smaller than the XR batteries.
The power outout seems to be the same as other 20v batteries.

Thanks for watching!