We may have to revisit that rule for electrics. Or one option is that we normally don’t let li-ion batteries discharge completely to preserve battery life but

We may have to revisit that rule for electrics. Or one option is that we normally don’t let li-ion batteries discharge completely to preserve battery life but that could still count toward your reserve with the right software. Or I believe there are some existing one time use batteries that are way more entry dense than li-ion? Perhaps those could be part of the system just for emergency use and to meet reserve requirements.