In article , "John Stumbles"
says...
wrote:
You say 16.6v? You mean 13.6 I guess? which are more commonly called
12v batteries, even though theyre not exactly..

no he said 16 6V which I read as 16 * 6V = 96V
I assume the inverter uses that to generate 240V AC

16 x 6V batteries powering a 24V inverter