ORIGINAL: evlwevl
Youve already put a lot of work into it, I'd go with what you have I think you could find a small plastic box, lets say the kind that holds screws or something and make that work. A lot of guys in the Crawling websites are using similar plastic boxes to waterproof their electroncis and batteries. I would go as far as building one out of balsa and covering with fiberglass. Thats what I do for my airlplanes when im wanting to protect my lipos in case of a crash. You could also build a box out of sheet lexan or acrylic from Home depot. Screw it together or use that special proweld adhesive and it will be super strong and clear so you could actually see the battery, then just fit a holder over the top.
Actually you should see my e-converted nitro mt1's battery box
I cut a stampedes chassis up and screwed its chassis to my MT1's aluminum chassis just to hold the battery (it doubles as a chassis reinforcement
)
and gelbschnee your not the only one lol. I was shocked I got it to hold I dropped it after I finished and was like ohh no when it was falling its gonna break off. the stuffs actually on there pretty damn well. I actually spent over an hour in 15 degree weather doing this in the garage (probably would have been easier in warmer weather)