@CliffSecord @KarlDahl @Bunsen @CoQ_10 There are some small scale battery ops out there, and they're basically limited to 45 minutes in the pattern during the spring/fall. That's the only real full batt mission on the market, people don't have much use for short-legged planes. We just had the LSAs try to con people into a 3-hour plane with 20 lbs of useful load, and those things have famously FLOWN off the shelves (as in 5 per year at most for the average brand)
There are some builders looking at the hybrid route as the most realistic, so you'd add something like a Turbaero Talon or TPR90 and recharge the batteries in cruise to the tune of 12 gph or so. It's in an odd space, a couple of the elements are there, so you'd think it would go together pretty easily, but in practice, batteries aren't nearly as robust as we need them to be