I would MUCH rather have battery tools than deal with gas. The mess, the smell, theI switched over to a battery grass trimmer about 15 years ago and it still works like new with a fresh battery. Same story on my battery tiller, battery chainsaws, battery push lawn mower, etc... No regrets in leaving the gas engine tools behind.

Recycling the batteries can be a problem. Not many people will look for a safe place/way to dispose of them. A a lot of people will just toss a battery that isn't putting out enough power, rather than looking to see if there is a way to refurbish them. Kudos to you.As to the batteries, my Li-Ion batteries are proving serviceable life going beyond 10 years. As I have stated, I'm in the Ryobi line of tools. The old Ni-Cad batteries died in about 3 years and had no value after that. But the newer Li-Ion batteries are proving to last much, much longer. My oldest Li-Ion batteries are now over 10 years old and still provide about 80% of their original capacity. No complaints from me.

If we weren't such a throw-away society, maybe there'd be pressure to make batteries last longer, or be repairable so that they'd last longer.
Oh, man, that would be awesome! That's what we need to work toward!I know I would welcome a less toxic battery for my tools. I would think everyone would as long as the batteries were another step forward in terms of capacity and performance.
Yes, if the public will DEMAND better, producers will have to give it to them, or be eclipsed by the companies who do. We can force the change through legislation, but voting with your pocketbook seems to work better and faster.Now that California is eliminating small gas engines, my hope is that market will respond with better, and safer, battery technology because there are a whole lot of customers in California that have no other options.
Create the market for better batteries. Create the demand for better batteries.