Amazingly this Lisa (https://www.ebay.com/itm/393292386413) has NiCad batteries that haven't yet leaked. I suspect they were replaced since they're orange and not the usual white ones.
https://i.ebayimg.com/images/g/JlAAAOSwbZ1gkIBJ/s-l1600.jpg(https://i.ebayimg.com/images/g/JlAAAOSwbZ1gkIBJ/s-l1600.jpg)