Step 4: Not using the Battery Bag (option 2)
This option requires 2x52mm exhaust clamps and some padding to stop scratching, and mounting the controller will be entirely up to you and how its fixed.
Firstly, fold your Trikke on a bench or table, using a container or books, place the battery pack between the frame up against the steering column. The brake cable loops will hold the plate clear of the cables,
Take your exhaust clamps and loop them over the column and mark the battery slide where you will need to drill the holes.
Mount the battery plate using whatever padding is required. ( as the heads of the bolts are INSIDE the slide, you will have to grind them down to 5mm or less after tightening them to the column, lock-tite the threads in this case.)
I have some shots of a possible battery layout.
THIS IS DEFINITELY A DRY WEATHER SETUP