On Thursday, August 8, 2019 at 11:36:06 AM UTC-4, AS wrote:
On Tuesday, August 6, 2019 at 9:38:47 PM UTC-4, wrote:
If you want to see what I consider to be "imaginary" power source
technology, just pick up a copy of "Gliding International." John Roake will
publish any press release about some new fuel cell, unicorn breath,
unobtanium or imaginarium battery that is just about to change
everything and make us ready to abolish the IGC.

To your point:
https://www.aopa.org/news-and-media/...m-sulfur-power
This was posted in an AOPA newsletter recently.

Very nice. Note only good for 60-100 cycles ;-)
https://45uevg34gwlltnbsf2plyua1-wpe...sheet-v4.2.pdf