he just called me after i put in a contact me request
went on about how he talked to some guy at nasa (20-30 years ago lol) and he told him to focus on four areas.. but nothing was mentioned about new battery chemistry such as lithium
its literally a lead acid chemistry battery with a supposedly better type of electrolyte, more surface area in the lead (yeah ok, we've already reached the point of diminishing returns here), and more internal connections between the cells to lower internal resistance.
like other expensive Pb batteries he uses higher quality lead which is where I imagine most people see a benefit
Lithium will absolutely blow these away, maybe they were cool 10-15 years ago because they were a better quality battery by 10-20%, but these days I doubt they're worth the price tag