ReTerminal E10-1 Battery Level

Does anyone have a way of assessing the UPS battery level of the ReTerminal E10-1? Battery level is an obviously critical feature of what is supposed to be a unit with UPS functionality. In searching online I was not able to find if a current/voltage monitoring IC such as the INA219 was included in this unit.

Thank you.

Could I please request some response from the company on this topic? Thank you.

Does Seeed Studio support their products and the makers that buy and support their company? There should be a prompt response from Seeed on how to actually make the battery indicator functional.

Has anyone had any luck with getting the battery indicator to work?