jretzlaff

Hey everyone... first post here. I searched around and didn't immediately find a post like this, but I'm sure it's out there... I have a decent collection of Dewalt cordless tools that utilize the now old 18V Li-Ion and even older 18V Ni-Cad batteries. Knowing that the 18V Li-Ion worked with all these tools, I was very happy. I just need to bolster my 18V Li-Ion battery inventory and I'd be set. Seemed like a moment later everything was moving towards the 20V Li-Ion. So here are my questions... 1. I can only assume that without modification, the new 20V Li-Ion will not work in my 18V tools, right? 2. Is the 20V THAT much better than the 18V that I should completely upgrade my tools? I just find it hard to believe that 2V of Li-Ion is so much better. I would much prefer to just adding more 18V Li-Ion batteries until my tools start to crap-out. THEN maybe consider going to the next best thing... Thoughts?