My point was: the ONLY way it makes sense is to use non-CO2 emitting electric power to recharge the batteries.
Even then, that is only if one thinks that CO2 is ‘bad’.
As far as I’m concerned, my coffee trees will appreciate ALL the CO2 you care to send them
Coffee - the Great Bean of Glory! YES!
CO2 is “bad” only if it actually affected the earth like the Ecco-Nazis claim. Alas - it would be quite difficult for humans to produce enough CO2 to dramatically damage the planet. I guess if we sprayed the globe with Roundup and then Agent Orange, wiping out nearly all plant life... then CO2 would rapidly be a problem...