Question? is there an Amazon or eBay DeWalt 20 volt to 18 volt adapter that is fairly easy to separate battery and or tool from adapter and won't cause a Parasitic drain if after use (out of habit) you left your 20 volt battery in 18 volt tools. The earlier DeWalt brand adapters weren't much to brag about and I expected more from it, unless you left adapter in 18 volt tool permanently and remembered to remove battery after each use.
I don't want to fry a 20 volt battery by accidentally leaving in tool. Yes I've collected quite the inventory of 20 volt batteries and tools over the years. From down state projects on hobby farm . Even though I'm a self proclaimed tool junky Can't really justify spending to get 20 volt tools for my up north cabin especially when I have quite the collection of 18 volt tools that still function fine for smaller projects, however definitely getting tired of using my 18 volt tools minimally and stopping work to wait for a charge. Thanks.