I don't mind so long as third parties are free to make compatible batteries and tools. Unfortunately there's no reasonable migration path for someone already in

I don't mind so long as third parties are free to make compatible batteries and tools. Unfortunately there's no reasonable migration path for someone already invested in tools and batteries. Unlike phones that get cycled through in just a few years, I am invested in my tools with the expectation that the majority of my less-used tools will last my lifetime. I'd like to be able to buy replacement compatible batteries for at least that long.