I'm looking for a pair of new (or used) terminals like the one shown at the link:
https://sep.yimg.com/ca/I/superkids_2268_74148703
Or from here: https://electricscooterparts.com/eziptrailz2011menselectricbicycleparts.html
Labeled there as "Battery Terminal for eZip® Trailz 2011 Men's...