Ryobi Dual Battery Mount

Mounts two Ryobi batteries together so I could wire them in series to power an old 36V mower that had a battery failure and is discontinued. The mower in the pictures is an Earthwise 20" Cordless 36 V Electric Lawn Mower (Model 60236). I haven't tested it extensively but it was able to maintain full speed while chopping through some tall weeds.

This is a remix of {Battery Holder for Ryobi 18V battery by Walpeup}. I duplicated and rotated the battery base in the original Thing and added some extra material to keep them together. I did the same with the battery tops along with an extra piece to keep them together. I got rid of the zip tie mounts in the original and just use spots of super glue (Gorilla Super Glue Gel, http://a.co/h985UHS) to mount the tops to the mounts.

Like the original Thing I used AAA negative battery contacts which I purchased as part number BK-204 (Digi-Key Part Number BK-204-ND, https://www.digikey.com/short/j9728p).

To mount the battery holder to th