Hi folks, first time post here, though I've been an on-and-off lurker for a while..
I just recently completed a mod of the fold booster that comes with the DX Chogokin YF-19 Full Set Pack, and figured I'd post some pics to see what you guys think. I used a 840 mAh 14500 LI-Ion cell, 4x 3mm LEDs, 2 red and 2 green, each with a 100 ohm resister, all wired in parallel so as to be powered by the 3.7v source. The inside of the booster needed significant modifications, going so far as to literally cut some parts completely out to make room for the battery. The wiring is certainly not the best, as this really my first project with wiring up something from scratch. I also didn't have anything to cannibalize terminals from, so I made due with what I had, which wasn't much, unfortunately, but it can be fixed later down the line if I feel like it, I suppose..
Anyway, here we go
Inside the booster...
Outside, showing LEDs lit, with no clear parts attached..
Partially assembled, showing the switch location beneath one of the panels..
Mounted on the Valkyrie