I cobbled together this AEG tool friction mount for use with BAL18 torches. I've been zip tying one of these to the front of my bike, which isn't as secure, or as convenient as I'd prefer, so I made this solution so I can easily remove the light at the end of a ride, and run a wire to a battery elsewhere on the bike. There are AEG battery mounts suitable for mounting to a bicycle frame available on Aliexpress. They come with a positive and negative wire, and an optional fuse in case you short the battery. I'll probably be using one of these.

Note that AEG batteries have inbuilt low voltage cut off so using this tool with other brands of battery may result in damage to the battery. However the BAL18 does work with 12v power as well as the default 5s / 18v batteries, so if a suitable 12v power supply is available you may be able to make it work.

M5x20mm countersunk bolts, M5x40mm socket head bolts, M5 nuts, and 1mm thick strips of metal for the battery connectors are required for assembly.

I also drilled a 5mm hole in the arms, and installed an optional m5 threaded rod to make the structure stronger, as I'll be using this on a mountain-bike in rough conditions. I recommend making your decision about this after assembly.

Prints are supportless. Print with thick walls and in a material that suits your climate.