[zzzzsleepy8]

I had a crane stock designed to hold airsoft nunchuck batteries with access from the back and have RS equivalent where you can only open the compartments from the front tabs and would have to drill out the back to put battery leads in.

I also have lipos that are too long to fit inside the compartments of that crane stock. Certainly the RS crane stocks, those compartments are often designed to hold CR123A batteries, and hence slightly larger diameter than a CR123A battery (slightly >16.5mm) would be all the space you have. With a 1200mAh lipo I have running 18.6mm corner to corner, no you can't get that into a RS crane stock compartment without mods.

I also have a magpul CTR stock that is shorter and cannot fit even most standard 1200mAh lipos without going to first extension setting and obviously I'd have to fit the battery in the buffer tube.

Its pretty obvious youre trying to do your own nunchuck styled lipo and trying to rig it into your crane stock compartments. For RS crane stocks I don't think you'd be able to without mods. Maybe if you get a Dboy's crane stock designed for airsoft you could get away with it. Anyway whatever. I know my lipos don't fit in a RS crane stock compartment and I also can't run my 1200mAh lipos inside my buffer tube when Im running my magpul CTR stock or a RS crane stock.