I just finished up this mod, have some buddies that wanted to see it on this forum. I was looking to build something similar to the Rapala charge glow but wanted to be able to keep the jigs in there full time. Hit a switch and charge them for 8-10 seconds, see which ones are glowing well or decided between colors. I could also put the existing jig in there to recharge it. Plus it is just fun to build stuff.
I am using A23 12Volt batteries with corresponding holders. The A23 batteries are small 12volt batteries used in things like garage door openers. The amperage is only 50 mAh hours but I did the math based on the mA for the UV LEDs
and you could get 2 hours of continuous use or 3.5 hours if two A23 batteries are wired in parallel which is what ended up doing. This of course is continuous use, only need 5-10 seconds to blast these so I think it will work fine. I wanted something smaller to charge jigs that wasn't tied to a larger 12 volt vex type battery, something to keep in the pocket. Also don't worry about looking for the UV flashlight etc.
I started out with a TB jig case I had and just laid things out. I picked up some UV LEDs
of various lengths. I think a longer one or two 4" UV strip running vertical would be best but I was just getting things going for now and put the two smaller (2.4") ones horizontal. The switch is for an RC airplane, it works great, I attached the switch so it could be turned on/off from the outside.